Engineering Flow Performance by Local Dynamics: Theories and Applications
(0) The performances of various flows in engineering applications are conventionally defined and assessed in terms of primary variables. But these performances are dominated by local dynamic processes and structures measured not by these variables themselves but their spatial-temporal derivatives. To fully understand what key local processes/structures in a flow dominate its performance, and to rationally optimize flow management, theories are needed to reexpress the performances by local dynamics. The more complex the flow is, the more urgently is such theories needed. In this article we present a critical review of the relevant theories, applicable to both external and internal flows with large Reynolds numbers and wide range of Mach numbers. Examples are given to demonstrate the combined theoretical-numerical local-dynamics approach to complex flow management, showing how it leads to unique physical insight and significant performance improvement.
flow diagnosis optimal design vorticity dynamics applied aerodynamics
Jiezhi Wu Feng Mao Weidong Su Hong Wu Qiushi Li
State Key Laboratory for Turbulence and Complex Systems College of Engineering, Peking University Be State Key Laboratory for Turbulence and Complex Systems College of Engineering, Peking University Be National Key Laboratory on Aero-engines School of Jet Propulsion Beijing University of Aeronautics a
国际会议
The Fourth International Symposium on Fluid Machinery and Fluid Engineering(第四届流体机械与流体工程国际会议)
北京
英文
33-43
2008-11-25（万方平台首次上网日期，不代表论文的发表时间）