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Una gira por el sistema solar: Planetas, asteroides y exploración espacial: desde Mercurio hasta la nube de Oort
by Patricio ZainEn clave pop, metalera y queer, Patricio Zain, doctor en Astronomía, comparte en este libro las últimas novedades e información sobre planetas, asteroides, misiones espaciales y otros mundos, y explica por qué es importante que sepamos qué hay más allá de la Luna. ¿Cuánto dura un día en Mercurio? ¿Venus es un infierno? ¿Podremos vivir en Marte? ¿Júpiter nos protege de una lluvia de meteoritos o la provoca, como buen bully? ¿Por qué Saturno se parece a Beyoncé? ¿Plutón es un planeta o no? ¿Urano y Neptuno son helados gigantes? ¿Un asteroide puede destruir la Tierra en el corto plazo? ¿Hay vida en otros planetas? ¿Existen cuerpos no binarios en el espacio transneptuniano? Estas preguntas, y muchas otras, serán respondidas a lo largo de esta gira que recorre la diversidad de mundos del sistema solar, con innumerables guiños a Lady Gaga, Taylor Swift, Judas Priest y demás artistas legendarios. En clave pop, metalera y queer, Patricio Zain, doctor en Astronomía, comparte en este libro las últimas novedades del conocimiento aportado por esa ciencia y las misiones espaciales acerca de los planetas, los asteroides, los cometas, los satélites y los transneptunianos, y explica por qué es importante saber qué hay más allá de la Tierra.
Una mente prodigiosa
by Sylvia NasarLa magnífica biografía del gran genio John Nash, una obra que recoge lo mejor y lo peor de esta aventura apasionante por los caminos de la genialidad. En 1949, John Forbes Nash era un joven estudiante en Princeton que con su tesis doctoral, dedicada al desarrollo de la teoría de juegos, dio buena muestra de un talento que impresionó a hombres de la talla de Albert Einstein, Robert Oppenheimer y John von Neuman. Más tarde, cuando trabajaba como profesor en el MIT de Cambridge, Massachusetts, se dedicó a investigar y resolver problemas matemáticos de gran envergadura, y en 1994 fue galardonado con el Premio Nobel de Economía. Este currículum, en apariencia impecable, solo nos habla de una parte de la vida de Forbes, pero hay otros aspectos del genio que lo revelan como un hombre hundido en el desamor y perdido entre los fantasmas de la esquizofrenia, una enfermedad que lo mantuvo recluido durante años en clínicas mentales. Hace diez años, Sylvia Nasar siguió paso a paso las peripecias de la turbulenta vida del matemático para entregarnos esta magnífica biografía, que ahora cuenta con un nuevo prólogo de la autora. En ella se recoge lo mejor y lo peor de una aventura vital tan compleja e intrigante como un teorema con rostro humano. Reseñas:«Hay historias que merecen ser contadas y personajes que deberían ser ampliamente conocidos. La historia de la vida del matemático John Forbes Nash es una de ellas.»José Manuel Sánchez Ron, Babelia «Dos párrafos y me enganché.»Oliver sacks
Una nebulosa en la Vía Láctea
by Lathish ShankarAmelia, una chica universitaria, es receptiva a los eventos paranormales. Una vez escribió un artículo para la revista de su universidad donde afirma que a veces escucha voces del futuro. Stephen, el profesor de Física, lee el artículo y lo comenta con su esposa Isabella. Isabella dice que Amelia es su paciente, que sufre de fobia a la sangre. Esta fue la razón por la que se salta el laboratorio de zoología y la clase de disección. Fue admitida en su hospital después de desmayarse en la cafetería, mientras tomaba un helado con sus amigos Rosemary, Merlin, Prince y Neil. Stephen se da cuenta con dolor que conoció a Amelia, hace años, y que él era la única razón y causa de su enfermedad mental. Sintiéndose terriblemente culpable de su pasado, se acerca a su amigo Zachariah John, un científico. Zachariah ayuda a Stephen a viajar en el tiempo y corregir el error que cometió sin saberlo. Stephen va al pasado en la máquina del tiempo, cambia su pasado y luego regresa al futuro. ¿Fue capaz de resolver todo? ¿Cómo ha cambiado el futuro una vez que alteró su línea de tiempo? ¿Alguna vez deseó que el futuro sucediera de esa manera?
Una serie de eventos afortunados: El azar, el mundo, la vida y tú
by Sean B. CarrollUna asombrosa exploración del azar como origen de toda la belleza y la diversidad del mundo. ¿Las cosas suceden por alguna razón o son fruto del azar? Filósofos y teólogos han reflexionado sobre esta cuestión durante milenios, pero no ha sido hasta hoy que los descubrimientos científicos la han resuelto: vivimos en un mundo donde impera la aleatoriedad. Como cualquier otra especie, los humanos estamos aquí por accidente. Pero ¿cuántas cosas tuvieron que ocurrir de cierta manera y no de otra para que existiéramos? Desde el impacto tremendamente improbable de un asteroide contra la Tierra hasta los cambios en su órbita durante la Edad de Hielo o las alteraciones invisibles en las gónadas de nuestros ancestros, somos producto de una asombrosa serie de eventos afortunados. Inspirado en figuras como Kurt Vonnegut y los Monty Python y escrito por uno de los mejores divulgadores científicos de la actualidad, este es el relato irresistiblemente entretenido y estimulante sobre uno de los aspectos más importantes y menos apreciados de la vida. Una asombrosa exploración del azar como origen de toda la belleza y la diversidad del mundo. La crítica ha dicho: «Fascinante y estimulante. Sean B. Carroll en todo su esplendor».Bill Bryson «Profundo, ingenioso y divertido. Cambiará para siempre la forma en la que te ves a ti mismo y al universo».Alice Roberts «Una visión breve, encantadora y científicamente sólida de la vida».Kirkus «Un libro sobre la historia de la humanidad contada con ingenio y estilo».John Brandon, Forbes «El papel de la casualidad en el destino del mundo puede parecer un asunto filosófico más que científico, pero Carroll, un biólogo, demuestra lo troncal que es esta idea en nuestro día a día».New York Times Book Review«En Carroll se combinan de forma singular tres rasgos de por sí singulares: un dominio de múltiples ámbitos científicos, una inigualable capacidad para explicar con claridad conceptos científicos complejos y un profundo instinto para contar historias».Barbara N. Horowitz, The Quarterly Review of Biology
Una vida sustentable: Ideas y consejos para cuidar nuestro planeta
by María Natalia MazzeiEn este libro, Natalia Mazzei, la creadora de @Ecointensa, nos ofrece la inspiración, los conocimientos y la motivación para entender el mundo que nos rodea, la manera en que consumimos y lo que podemos hacer para salvar al planeta. Quienes vivimos en la ciudad reconocemos y sabemos de la importancia de reducir el impacto ambiental. Muchas veces creemos que es algo difícil, cuando no imposible, de llevar a cabo. Este libro propone un recorrido por los distintos espacios de desarrollo y consumo de una persona urbana, con herramientas e información para planear nuevas formas de vincularnos con el entorno. Lo fundamental es la toma de consciencia como motor de cambio de hábitos y lograr una conexión humana y verdadera con nuestro medio ambiente para la construcción de un futuro distinto. Nati Mazzei, creadora de @Ecointensa, comparte anécdotas personales, citas inspiradoras y pensamientos, y brinda consejos sobre cómo vivir de manera más ecológica, nutrir la tierra, apoyar las economías locales y crear un estilo de vida sustentable.
Unapologetic: Why, Despite Everything, Christianity Can Still Make Surprising Emotional Sense
by Francis SpuffordFrancis Spufford's Unapologetic is a wonderfully pugnacious defense of Christianity. Refuting critics such as Richard Dawkins, Sam Harris, and the "new atheist" crowd, Spufford, a former atheist and Fellow of the Royal Society of Literature, argues that Christianity is recognizable, drawing on the deep and deeply ordinary vocabulary of human feeling, satisfying those who believe in it by offering a ruthlessly realistic account of the grown-up dignity of Christian experience.Fans of C. S. Lewis, N. T. Wright, Marilynne Robinson, Mary Karr, Diana Butler Bass, Rob Bell, and James Martin will appreciate Spufford's crisp, lively, and abashedly defiant thesis.Unapologetic is a book for believers who are fed up with being patronized, for non-believers curious about how faith can possibly work in the twenty-first century, and for anyone who feels there is something indefinably wrong, literalistic, anti-imaginative and intolerant about the way the atheist case is now being made.
Unbegrenzte Lichtmikroskopie: Über Auflösung und Super-Hochauflösung und die Frage, ob man Moleküle sehen kann (essentials)
by Rolf Theodor BorlinghausRolf T. Borlinghaus erläutert die Ursachen für die klassische Begrenzung der Lichtmikroskopie und beleuchtet die neuen Super-Hochauflösungstechniken. Dies ist besonders aktuell, da der Nobelpreis 2014 für Chemie für die Entwicklung von Technologien vergeben wurde, die es nun ermöglichen, mit Lichtmikroskopen feinere Details aufzulösen, als es die klassische Theorie einschränkend vorhersagt. Diese neuen Methoden stellen aber nicht das bisherige Weltbild der Optik in Frage, vielmehr nutzen sie ganz andere Phänomene, um mittels klassischer Optik Positionsbestimmungen von Molekülen durchzuführen. Das ist theoretisch beliebig genau möglich.
Unbelievable
by Stacy HornFrom The Sixth Sense to Medium, Ghost Whisperer to Ghost Hunters, the paranormal stirs heated debate, spawning millions of believers and skeptics alike. Nearly half of us say we believe in ghosts, and two-thirds of us believe in life after death. What would you make of rain barrels that refill themselves? Psychic horses? Mind-reading Cold War spies? For a group of scientists at the Duke Parapsychology Lab under the leadership of Dr. J. B. Rhine-considered the Einstein of the paranormal-such mysteries demanded further investigation. From 1930 to 1980, these dedicated men and women attempted to test the bizarre, the frightening, and the unexplainable against the rigors of science, ultimately finding proof that the human mind possesses telepathic powers.
Unbelievable: 7 Myths About the History and Future of Science and Religion
by Michael Newton KeasUnbelievable explodes seven of the most popular and pernicious myths about science and religion. Michael Newton Keas, a historian of science, lays out the facts to show how far the conventional wisdom departs from reality. He also shows how these myths have proliferated over the past four centuries and exert so much influence today, infiltrating science textbooks and popular culture. The seven myths, Keas shows, amount to little more than religion bashing—especially Christianity bashing.Unbelievable reveals: · Why the “Dark Ages” never happened · Why we didn’t need Christopher Columbus to prove the earth was round · Why Copernicus would be shocked to learn that he supposedly demoted humans from the center of the universe · What everyone gets wrong about Galileo’s clash with the Church, and why it matters today · Why the vastness of the universe does not deal a blow to religious belief in human significance · How the popular account of Giordano Bruno as a “martyr for science” ignores the fact that he was executed for theological reasons, not scientific ones · How a new myth is being positioned to replace religion—a futuristic myth that sounds scientific but isn’t In debunking these myths, Keas shows that the real history is much more interesting than the common narrative of religion at war with science. This accessible and entertaining book offers an invaluable resource to students, scholars, teachers, homeschoolers, and religious believers tired of being portrayed as anti-intellectual and anti-science.
Unberechenbares Klima: Ursachen und Unsicherheiten des Klimawandels
by Klaus DethloffDie Veränderungen unseres Klimas sind allgegenwärtig spürbar, das allgemeine Verständnis der Prozesse dahinter aber mit Informationen überschwemmt und vielfach gefiltert. Es fehlt ein tieferer Blick, um Klarheit über die beteiligten Prozesse zu erhalten und nicht zuletzt eigene Handlungsräume zu erkennen. Dieses Buch präsentiert den ungeschminkten Stand des Wissens und Nichtwissens zu den komplexen Ursachen des Klimawandels auf der Basis von globalen Datensätzen und Modellsimulationen. Nicht erschrecken – Der Anspruch besteht darin zu vereinfachen, ohne zu verfälschen. Klimaänderungen werden nicht nur durch Strahlungsprozesse, sondern auch die nichtlineare Dynamik des Atmosphäre-Meereis-Ozeansystems bestimmt. Die Dynamik des Planeten befindet sich nur teilweise in unserer Hand, denn neben dem menschlichen Einfluss durch Treibhausgase und Aerosole generiert das Klimasystem seine eigene interne Variabilität. Die globale Reduktion des Ausstoßes schädlicher Treibhausgase ist eine unerlässliche Maßnahme in allen Strategien zur Bewältigung des Klimawandels. Aber bleibt dessen Begrenzung ein unerfüllter Wunsch? Ein Buch, das von einem international ausgewiesenem Experten in der Arktisforschung geschrieben wurde, und komplexe Sachverhalte unseres Klimasystems für jeden interessierten Leser – den Naturwissenschaftler und den Laien - aufschlüsselt. Und das mit dem klaren Ziel aufzuzeigen, dass der Klimawandel nicht aufgehalten, sondern maximal in dessen Auswirkung auf unsere Lebenswelt begrenzt werden kann.
Unbestimmt und relativ?: Das Weltbild der modernen Physik
by Meinard Kuhlmann Helmut FinkQuantentheorie und Relativitätstheorie haben das Weltbild der Physik revolutioniert. Beide Theorien gelten jedoch als unanschaulich und schwer verständlich. Dieses Sachbuch schafft neue Zugänge und lädt zum Mitdenken ein. Renommierte Experten aus Physik und Philosophie erläutern Grundbegriffe, Erkenntnisfortschritte und Deutungsfragen zu Raum, Zeit und Materie.Dabei kommen typische Themen aus der Philosophie der Physik zur Sprache, wie etwa die Interpretationsdebatte der Quantentheorie oder Modellbildungen in der Kosmologie. Weltbildrelevante Fragen nach dem Verhältnis von Mathematik, Empirie und Anschauung oder nach der Verlässlichkeit physikalischer Erkenntnis erfordern die Verbindung von Physik und Philosophie, von fachwissenschaftlicher Grundlagenforschung und methodenkritischer Reflexion. Der thematische Bogen geht zurück auf ein hochkarätig besetztes Symposium mit populärwissenschaftlicher Ausrichtung. Das Buch enthält Beiträge von Andreas Bartels, Robert Harlander, Paul Hoyningen-Huene, Gert-Ludwig Ingold, Claus Kiefer, Meinard Kuhlmann, Klaus Mainzer, Oliver Passon, Manfred Stöckler, Rüdiger Vaas und Reinhard Werner.
Unbiased Stereology: A Concise Guide
by Peter R. MoutonThis update to Peter R. Mouton’s pioneering work provides bioscientists with the concepts needed in order to apply the principles and practices of unbiased stereology to research involving biological tissues.Mouton starts with a brief explanation of the history and theory of the process before defining the terms, concepts, and tools of unbiased stereological procedures. He compares and contrasts the procedures with less-exacting approaches to quantitative analysis of biological structure using specific examples from biomedical literature. The book incorporates existing best practices with new methodologies, such as the Rare Event Protocol, while simplifying the dense, often difficult literature on the subject to show the utility and importance of unbiased stereology. This clear, insightful guide goes a step further than other books on this subject by demonstrating not only how to use unbiased stereology but also how to interpret and present the results.Written by the official U.S. representative to the International Society for Stereology, this is the most complete, up-to-date resource on the science of unbiased stereology. Those new to bioscience research as well as experienced practitioners will find that Mouton’s explanations are the perfect companion for stereology courses and workshops.
Unbound: How Eight Technologies Made Us Human and Brought Our World to the Brink
by Richard L. CurrierAlthough we usually think of technology as something unique to modern times, our ancestors began to create the first technologies millions of years ago in the form of prehistoric tools and weapons. Over time, eight key technologies gradually freed us from the limitations of our animal origins. The fabrication of weapons, the mastery of fire, and the technologies of clothing and shelter radically restructured the human body, enabling us to walk upright, shed our body hair, and migrate out of tropical Africa. Symbolic communication transformed human evolution from a slow biological process into a fast cultural process. The invention of agriculture revolutionized the relationship between humanity and the environment, and the technologies of interaction led to the birth of civilization. Precision machinery spawned the industrial revolution and the rise of nation-states; and in the next metamorphosis, digital technologies may well unite all of humanity for the benefit of future generations. Synthesizing the findings of primatology, paleontology, archeology, history, and anthropology, Richard Currier reinterprets and retells the modern narrative of human evolution that began with the discovery of Lucy and other Australopithecus fossils. But the same forces that allowed us to integrate technology into every aspect of our daily lives have also brought us to the brink of planetary catastrophe. Unbound explains both how we got here and how human society must be transformed again to achieve a sustainable future. Technology: "The deliberate modification of any natural object or substance with forethought to achieve a specific end or to serve a specific purpose. ”
Uncaged (The Singular Menace, #1)
by John Sandford Michele Cook#1 New York Times bestselling Prey author John Sandford and Michele Cook debut a high-octane young adult thriller series. Shay Remby arrives in Hollywood with $58 and a handmade knife, searching for her brother, Odin. Odin's a brilliant hacker but a bit of a loose cannon. He and a group of radical animal-rights activists hit a Singular Corp. research lab in Eugene, Oregon. The raid was a disaster, but Odin escaped with a set of highly encrypted flash drives and a post-surgical dog. When Shay gets a frantic 3 a.m. phone call from Odin--talking about evidence of unspeakable experiments, and a ruthless corporation, and how he must hide--she's concerned. When she gets a menacing visit from Singular's security team, she knows: her brother's a dead man walking. What Singular doesn't know--yet--is that 16-year-old Shay is every bit as ruthless as their security force, and she will burn Singular to the ground, if that's what it takes to save her brother.
Uncanny Valley: A Memoir
by Anna WienerThe prescient, page-turning account of a journey in Silicon Valley: a defining memoir of our digital age <P><P>In her mid-twenties, at the height of tech industry idealism, Anna Wiener—stuck, broke, and looking for meaning in her work, like any good millennial--left a job in book publishing for the promise of the new digital economy. She moved from New York to San Francisco, where she landed at a big-data startup in the heart of the Silicon Valley bubble: a world of surreal extravagance, dubious success, and fresh-faced entrepreneurs hell-bent on domination, glory, and, of course, progress. <P><P>Anna arrived amidst a massive cultural shift, as the tech industry rapidly transformed into a locus of wealth and power rivaling Wall Street. But amid the company ski vacations and in-office speakeasies, boyish camaraderie and ride-or-die corporate fealty, a new Silicon Valley began to emerge: one in far over its head, one that enriched itself at the expense of the idyllic future it claimed to be building. Part coming-of-age-story, part portrait of an already-bygone era, Anna Wiener’s memoir is a rare first-person glimpse into high-flying, reckless startup culture at a time of unchecked ambition, unregulated surveillance, wild fortune, and accelerating political power. With wit, candor, and heart, Anna deftly charts the tech industry’s shift from self-appointed world savior to democracy-endangering liability, alongside a personal narrative of aspiration, ambivalence, and disillusionment. <P><P>Unsparing and incisive, Uncanny Valley is a cautionary tale, and a revelatory interrogation of a world reckoning with consequences its unwitting designers are only beginning to understand.
Uncentering the Earth: Copernicus and the Revolutions of the Heavenly Spheres
by William T. VollmanOne of the books in a series called Great Discoveries, which presents good science in the clearest possible way.
Uncertain Climes: Debating Climate Change in Gilded Age America
by Joseph GiacomelliUncertain Climes looks to the late nineteenth century to reveal how climate anxiety was a crucial element in the emergence of American modernity. Even people who still refuse to accept the reality of human-induced climate change would have to agree that the topic has become inescapable in the United States in recent decades. But as Joseph Giacomelli shows in Uncertain Climes, this is actually nothing new: as far back as Gilded Age America, climate uncertainty has infused major debates on economic growth and national development. In this ambitious examination of late-nineteenth-century understandings of climate, Giacomelli draws on the work of scientists, foresters, surveyors, and settlers to demonstrate how central the subject was to the emergence of American modernity. Amid constant concerns about volatile weather patterns and the use of natural resources, nineteenth-century Americans developed a multilayered discourse on climate and what it might mean for the nation’s future. Although climate science was still in its nascent stages during the Gilded Age, fears and hopes about climate change animated the overarching political struggles of the time, including expansion into the American West. Giacomelli makes clear that uncertainty was the common theme linking concerns about human-induced climate change with cultural worries about the sustainability of capitalist expansionism in an era remarkably similar to the United States’ unsettled present.
Uncertain Graph and Network Optimization (Springer Uncertainty Research)
by Bo Zhang Jin PengThis first book focuses on uncertain graph and network optimization. It covers three different main contents: uncertain graph, uncertain programming and uncertain network optimization. It also presents applications of uncertain network optimization in a lot of real problems such as transportation problems, dispatching medical supplies problems and location problems.The book is suitable for researchers, engineers, teachers and students in the field of mathematics, information science, computer science, decision science, management science and engineering, artificial intelligence, industrial engineering, economics and operations research.
Uncertain Peril: Genetic Engineering and the Future of Seeds
by Claire Hope CummingsAfter serving as an environmental lawyer for 20 years, four of them with the US Department of Agriculture, Cummings is now a writer and broadcast reporter based in rural northern California. Here she presents a cautionary account of genetic engineering as it is being used in agriculture, though she suggests that many of her findings could apply to its use in medicine, biological warfare, and other areas as well. Her topics include trade secrets, the ownership society, the botany of scarcity, and a conversation with corn. Annotation ©2008 Book News, Inc. , Portland, OR (booknews. com)
Uncertainty Analyses in Environmental Sciences and Hydrogeology: Methods and Applications to Subsurface Contamination (SpringerBriefs in Applied Sciences and Technology)
by Rachid Ababou Juliette Chastanet Jean-Marie Côme Manuel Marcoux Michel QuintardThis book highlights several methods and quantitative implementations of both probabilistic and fuzzy-based approaches to uncertainty quantification and uncertainty propagation through environmental subsurface pollution models with uncertain input parameters. The book focuses on methods as well as applications in hydrogeology, soil hydrology, groundwater contamination, and related areas (e.g., corrosion of nuclear waste canisters). The methods are illustrated for a broad spectrum of models, from non-differential I/O models to complex PDE solvers, including a novel 3D quasi-analytical model of contaminant transport, and a site-specific computer model of dissolved contaminant migration from a DNAPL (Dense Non Aqueous Phase Liquid) pollution source.
Uncertainty Management for Robust Industrial Design in Aeronautics: Findings and Best Practice Collected During UMRIDA, a Collaborative Research Project (2013–2016) Funded by the European Union (Notes on Numerical Fluid Mechanics and Multidisciplinary Design #140)
by Charles Hirsch Dirk Wunsch Jacek Szumbarski Łukasz Łaniewski-Wołłk Jordi Pons-PratsThis book covers cutting-edge findings related to uncertainty quantification and optimization under uncertainties (i.e. robust and reliable optimization), with a special emphasis on aeronautics and turbomachinery, although not limited to these fields. It describes new methods for uncertainty quantification, such as non-intrusive polynomial chaos, collocation methods, perturbation methods, as well as adjoint based and multi-level Monte Carlo methods. It includes methods for characterization of most influential uncertainties, as well as formulations for robust and reliable design optimization. A distinctive element of the book is the unique collection of test cases with prescribed uncertainties, which are representative of the current engineering practice of the industrial consortium partners involved in UMRIDA, a level 1 collaborative project within the European Commission's Seventh Framework Programme (FP7). All developed methods are benchmarked against these industrial challenges. Moreover, the book includes a section dedicated to Best Practice Guidelines for uncertainty quantification and robust design optimization, summarizing the findings obtained by the consortium members within the UMRIDA project. All in all, the book offers a authoritative guide to cutting-edge methodologies for uncertainty management in engineering design, covers a wide range of applications and discusses new ideas for future research and interdisciplinary collaborations.
Uncertainty Quantification
by Christian SoizeAdvanced Computational Vibroacoustics presents an advanced computational method for the prediction of sound and structural vibrations, in low- and medium-frequency ranges - complex structural acoustics and fluid-structure interaction systems encountered in aerospace, automotive, railway, naval, and energy-production industries. The formulations are presented within a unified computational strategy and are adapted for the present and future generation of massively parallel computers. A reduced-order computational model is constructed using the finite element method for the damped structure and the dissipative internal acoustic fluid (gas or liquid with or without free surface) and using an appropriate symmetric boundary-element method for the external acoustic fluid (gas or liquid). This book allows direct access to computational methods that have been adapted for the future evolution of general commercial software. Written for the global market, it is an invaluable resource for academic researchers, graduate students, and practising engineers.
Uncertainty Quantification in Computational Fluid Dynamics
by Christoph Schwab Hester Bijl Didier Lucor Siddhartha MishraFluid flows are characterized by uncertain inputs such as random initial data, material and flux coefficients, and boundary conditions. The current volume addresses the pertinent issue of efficiently computing the flow uncertainty, given this initial randomness. It collects seven original review articles that cover improved versions of the Monte Carlo method (the so-called multi-level Monte Carlo method (MLMC)), moment-based stochastic Galerkin methods and modified versions of the stochastic collocation methods that use adaptive stencil selection of the ENO-WENO type in both physical and stochastic space. The methods are also complemented by concrete applications such as flows around aerofoils and rockets, problems of aeroelasticity (fluid-structure interactions), and shallow water flows for propagating water waves. The wealth of numerical examples provide evidence on the suitability of each proposed method as well as comparisons of different approaches.
Uncertainty Quantification in Computational Fluid Dynamics and Aircraft Engines
by Francesco Montomoli Mauro Carnevale Antonio D'Ammaro Michela Massini Simone SalvadoriThis book introduces novel design techniques developed to increase the safety of aircraft engines. The authors demonstrate how the application of uncertainty methods can overcome problems in the accurate prediction of engine lift, caused by manufacturing error. This in turn ameliorates the difficulty of achieving required safety margins imposed by limits in current design and manufacturing methods. This text shows that even state-of-the-art computational fluid dynamics (CFD) are not able to predict the same performance measured in experiments; CFD methods assume idealised geometries but ideal geometries do not exist, cannot be manufactured and their performance differs from real-world ones. By applying geometrical variations of a few microns, the agreement with experiments improves dramatically, but unfortunately the manufacturing errors in engines or in experiments are unknown. In order to overcome this limitation, uncertainty quantification considers the probability density functions of manufacturing errors. It is then possible to predict the overall variation of the jet engine performance using stochastic techniques. Uncertainty Quantification in Computational Fluid Dynamics and Aircraft Engines demonstrates that some geometries are not affected by manufacturing errors, meaning that it is possible to design safer engines. Instead of trying to improve the manufacturing accuracy, uncertainty quantification when applied to CFD is able to indicate an improved design direction. This book will be of interest to gas turbine manufacturers and designers as well as CFD practitioners, specialists and researchers. Graduate and final year undergraduate students may also find it of use.
Uncertainty Quantification in Computational Fluid Dynamics and Aircraft Engines (SpringerBriefs in Applied Sciences and Technology)
by Francesco MontomoliThis book introduces design techniques developed to increase the safety of aircraft engines, and demonstrates how the application of stochastic methods can overcome problems in the accurate prediction of engine lift caused by manufacturing error. This in turn addresses the issue of achieving required safety margins when hampered by limits in current design and manufacturing methods. The authors show that avoiding the potential catastrophe generated by the failure of an aircraft engine relies on the prediction of the correct behaviour of microscopic imperfections. This book shows how to quantify the possibility of such failure, and that it is possible to design components that are inherently less risky and more reliable.This new, updated and significantly expanded edition gives an introduction to engine reliability and safety to contextualise this important issue, evaluates newly-proposed methods for uncertainty quantification as applied to jet engines.Uncertainty Quantification in Computational Fluid Dynamics and Aircraft Engines will be of use to gas turbine manufacturers and designers as well as CFD practitioners, specialists and researchers. Graduate and final year undergraduate students in aerospace or mathematical engineering may also find it of interest.