Stability and Suppression of Turbulence in Relaxing Molecular Gas Flows - Grigoryev, Yurii N.;Ershov, Igor V.
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This book presents an in-depth systematic investigation of a dissipative effect which manifests itself as the growth of hydrodynamic stability and suppression of turbulence in relaxing molecular gas flows.
The work describes the theoretical foundations of a new way to control stability and laminar turbulent transitions in aerodynamic flows. It develops hydrodynamic models for describing thermal nonequilibrium gas flows which allow the consideration of suppression of inviscid acoustic waves in 2D shear flows. Then, nonlinear evolution of large-scale vortices and Kelvin-Helmholtz waves in…mehr

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Produktbeschreibung
This book presents an in-depth systematic investigation of a dissipative effect which manifests itself as the growth of hydrodynamic stability and suppression of turbulence in relaxing molecular gas flows.

The work describes the theoretical foundations of a new way to control stability and laminar turbulent transitions in aerodynamic flows. It develops hydrodynamic models for describing thermal nonequilibrium gas flows which allow the consideration of suppression of inviscid acoustic waves in 2D shear flows. Then, nonlinear evolution of large-scale vortices and Kelvin-Helmholtz waves in relaxing shear flows are studied. Critical Reynolds numbers in supersonic Couette flows are calculated analytically and numerically within the framework of both linear and nonlinear classical energy hydrodynamic stability theories. The calculations clearly show that the relaxation process can appreciably delay the laminar-turbulent transition. The aim of the book is to show the new dissipative effect, which can be used for flow control and laminarization.

This volume will be of interest and useful to mechanical engineers, physicists, and mathematicians who specialize in hydrodynamic stability theory, turbulence, and laminarization of flows.
Autorenporträt
Prof. Yurii N. Grigoryev is Doctor in Physics and Mathematics, working at the Institute of Computational Technologies SB RAS, Novosibirsk State University. He is author and co-author of six monographs, four tutorials and more than two hundred scientific papers. His fields of scientific interests are hydrodynamic stability and turbulence, kinetic theory of gases, physical and chemical processes, group methods, mathematical modeling, optimization. In 2014 he received The Academician Petrov Prize of the National Committee on Theoretical and Applied Mechanics of the Russian Academy of Sciences for outstanding studies on hydrodynamic stability theory and turbulence. Prof. Igor' V. Ershov is also Doctor in Physics and Mathematics, working at the Department of Information Systems and Technologies, Novosibirsk State University of Architecture and Civil Engineering. He is author and co-author of one hundred and twenty scientific papers, one monograph and several tutorials on modern mathematical packages. His fields of scientific interests are hydrodynamic stability and turbulence, kinetic theory of gases, physical and chemical processes, mathematical modeling. In 2014 he received The Academician Petrov Prize of the National Committee on Theoretical and Applied Mechanics of the Russian Academy of Sciences for outstanding studies on hydrodynamic stability theory and turbulence.