Author: Xue-Song WuPublisher:
ISBN:
Category :
Languages : en
Pages : 48
Book Description
Linear and Nonlinear Instabilities of Blasius Boundary Layer Perturbed by Streamwise Vortices
Author: Xue-Song WuSeventh IUTAM Symposium on Laminar-Turbulent Transition
Author: Philipp SchlatterPublisher: Springer Science & Business Media
ISBN: 9048137233
Category : Science
Languages : en
Pages : 628
Book Description
The origins of turbulent ?ow and the transition from laminar to turbulent ?ow are the most important unsolved problems of ?uid mechanics and aerodynamics. - sides being a fundamental question of ?uid mechanics, there are numerous app- cations relying on information regarding transition location and the details of the subsequent turbulent ?ow. For example, the control of transition to turbulence is - pecially important in (1) skin-friction reduction of energy ef?cient aircraft, (2) the performance of heat exchangers and diffusers, (3) propulsion requirements for - personic aircraft, and (4) separation control. While considerable progress has been made in the science of laminar to turbulent transition over the last 30 years, the c- tinuing increase in computer power as well as new theoretical developments are now revolutionizing the area. It is now starting to be possible to move from simple 1D eigenvalue problems in canonical ?ows to global modes in complex ?ows, all - companied by accurate large-scale direct numerical simulations (DNS). Here, novel experimental techniques such as modern particle image velocimetry (PIV) also have an important role. Theoretically the in?uence of non-normality on the stability and transition is gaining importance, in particular for complex ?ows. At the same time the enigma of transition in the oldest ?ow investigated, Reynolds pipe ?ow tran- tion experiment, is regaining attention. Ideas from dynamical systems together with DNS and experiments are here giving us new insights.
ICASE Semiannual Report
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 64
Book Description
This report summarizes research conducted at ICASE in applied mathematics, computer science, fluid mechanics, and structures and material sciences during the period October 1, 2000 through March 31, 2001.
Stability and Transition in Shear Flows
Author: Peter J. SchmidPublisher: Springer Science & Business Media
ISBN: 1461301858
Category : Science
Languages : en
Pages : 561
Book Description
A detailed look at some of the more modern issues of hydrodynamic stability, including transient growth, eigenvalue spectra, secondary instability. It presents analytical results and numerical simulations, linear and selected nonlinear stability methods. By including classical results as well as recent developments in the field of hydrodynamic stability and transition, the book can be used as a textbook for an introductory, graduate-level course in stability theory or for a special-topics fluids course. It is equally of value as a reference for researchers in the field of hydrodynamic stability theory or with an interest in recent developments in fluid dynamics. Stability theory has seen a rapid development over the past decade, this book includes such new developments as direct numerical simulations of transition to turbulence and linear analysis based on the initial-value problem.
04-2527 - 04-2554
Author: Perspectives in Fluid Dynamics
Author: G. K. BatchelorPublisher: Cambridge University Press
ISBN: 9780521531696
Category : Mathematics
Languages : en
Pages : 650
Book Description
Paperback edition of text on fluid dynamics for graduate students and specialists alike.
NASA Langley Scientific and Technical Information Output-2001
Author: Mathematical Reviews
Author: Unsteady Combustor Physics
Author: Tim C. LieuwenPublisher: Cambridge University Press
ISBN: 1139576836
Category : Technology & Engineering
Languages : en
Pages : 427
Book Description
Developing clean, sustainable energy systems is a pre-eminent issue of our time. Most projections indicate that combustion-based energy conversion systems will continue to be the predominant approach for the majority of our energy usage. Unsteady combustor issues present the key challenge associated with the development of clean, high-efficiency combustion systems such as those used for power generation, heating or propulsion applications. This comprehensive study is unique, treating the subject in a systematic manner. Although this book focuses on unsteady combusting flows, it places particular emphasis on the system dynamics that occur at the intersection of the combustion, fluid mechanics and acoustic disciplines. Individuals with a background in fluid mechanics and combustion will find this book to be an incomparable study that synthesises these fields into a coherent understanding of the intrinsically unsteady processes in combustors.
Author: