The Essence of Turbulence as a Physical Phenomenon

Author: Arkady Tsinober
Publisher: Springer Science & Business Media
ISBN: 9400771800
Format: PDF, Kindle
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This book critically reexamines what turbulence really is, from a fundamental point of view and based on observations from nature, laboratories, and direct numerical simulations. It includes critical assessments and a comparative analysis of the key developments, their evolution and failures, along with key misconceptions and outdated paradigms. The main emphasis is on conceptual and problematic aspects, physical phenomena, observations, misconceptions and unresolved issues rather than on conventional formalistic aspects, models, etc. Apart from the obvious fundamental importance of turbulent flows, this emphasis stems from the basic premise that without corresponding progress in fundamental aspects there is little chance for progress in applications such as drag reduction, mixing, control and modeling of turbulence. More generally, there is also a desperate need to grasp the physical fundamentals of the technological processes in which turbulence plays a central role.

The Essence of Turbulence As a Physical Phenomenon with Emphasis on Issues of Paradigmatic Nature

Author: Arkady Tsinober
Publisher:
ISBN: 9781306202404
Format: PDF
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This book critically reexamines what turbulence really is, from a fundamental point of view and based on observations from nature, laboratories, and direct numerical simulations. It includes critical assessments and a comparative analysis of the key developments, their evolution and failures, along with key misconceptions and outdated paradigms. The main emphasis is on conceptual and problematic aspects, physical phenomena, observations, misconceptions and unresolved issues rather than on conventional formalistic aspects, models, etc. Apart from the obvious fundamental importance of turbulent flows, this emphasis stems from the basic premise that without corresponding progress in fundamental aspects there is little chance for progress in applications such as drag reduction, mixing, control and modeling of turbulence. More generally, there is also a desperate need to grasp the physical fundamentals of the technological processes in which turbulence plays a central role.

Structures and Algorithms

Author: Jens Erik Fenstad
Publisher: Springer
ISBN: 3319729748
Format: PDF, Docs
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This book explains exactly what human knowledge is. The key concepts in this book are structures and algorithms, i.e., what the readers “see” and how they make use of what they see. Thus in comparison with some other books on the philosophy (or methodology) of science, which employ a syntactic approach, the author’s approach is model theoretic or structural. Properly understood, it extends the current art and science of mathematical modeling to all fields of knowledge. The link between structure and algorithms is mathematics. But viewing “mathematics” as such a link is not exactly what readers most likely learned in school; thus, the task of this book is to explain what “mathematics” should actually mean. Chapter 1, an introductory essay, presents a general analysis of structures, algorithms and how they are to be linked. Several examples from the natural and social sciences, and from the history of knowledge, are provided in Chapters 2–6. In turn, Chapters 7 and 8 extend the analysis to include language and the mind. Structures are what the readers see. And, as abstract cultural objects, they can almost always be seen in many different ways. But certain structures, such as natural numbers and the basic theory of grammar, seem to have an absolute character. Any theory of knowledge grounded in human culture must explain how this is possible. The author’s analysis of this cultural invariance, combining insights from evolutionary theory and neuroscience, is presented in the book’s closing chapter. The book will be of interest to researchers, students and those outside academia who seek a deeper understanding of knowledge in our present-day society.

Wie ich die Dinge geregelt kriege

Author: David Allen
Publisher: Piper ebooks
ISBN: 3492972314
Format: PDF, ePub, Docs
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Eigentlich sollte man längst bei einem Termin sein, doch dann klingelt das Handy und das E-Mail-Postfach quillt auch schon wieder über. Für Sport und Erholung bleibt immer weniger Zeit und am Ende resigniert man ausgebrannt, unproduktiv und völlig gestresst. Doch das muss nicht sein. Denn je entspannter wir sind, desto kreativer und produktiver werden wir. Mit David Allens einfacher und anwendungsorientierter Methode wird beides wieder möglich: effizient zu arbeiten und die Freude am Leben zurückzugewinnen.