Advanced Search

Query:

Fill in the form and click »Search«...

Format:

Display: entries per page entries

Zbl 0589.76067
Gao, Ge
A theory of interaction between dissipation and dispersion of turbulence. (English)
[J] Sci. Sin., Ser. A 28, 616-627 (1985). ISSN 0582-236X

Summary: The turbulent vortices possess the properties of decay,, dissipation and dispersion. A set of new control equations is presented featuring the interaction between dissipation and dispersion of turbulence. By stability analysis the turbulent energy production rate is established. Two third-order momentum equations are derived, one for strong vorticity and the other for weak vorticity. By this new theory diversified turbulent flow problems can be solved, such as the energy inversion in the wake vortex behind a bluff body, the coherent horseshoe vortex patterns in a turbulent boundary layer, the delay in cascading of turbulent energy through spectrum, anisotropy, etc. Two computational examples are presented in this paper.

MSC 2000:: *76Fxx Turbulence
76M99 Basic methods in fluid mechanics
93C20 Control systems governed by PDE

Keywords: turbulent vortices; decay,; dissipation; dispersion; control equations; interaction between dissipation and dispersion of turbulence; stability analysis; turbulent energy production rate; third-order momentum equations; strong vorticity; weak vorticity; turbulent flow problems; energy inversion; wake vortex behind a bluff body; coherent horseshoe vortex patterns; turbulent boundary layer; cascading of turbulent energy

Comment on this Item PDF MathML XML ASCII DVI PS BibTeX Online Ordering

	Scientific prize winners of the ICM 2010
	Overhang
	Lie groups, physics and geometry. An introduction for physicists, engineers and chemists.

Advanced Search

Zentralblatt MATH Berlin [Germany]