Towards a nonlinear eddy-viscosity model based on elliptic relaxation

A phenomenological method has been used to derive a nonlinear constitutive relationship that can be used in conjunction with any eddy-viscosity model utilizing the elliptic relaxation method. While retaining the merits of the elliptic relaxation to model near-wall turbulence, the new model also enab...

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Veröffentlicht in:	Flow, turbulence and combustion turbulence and combustion, 2006-04, Vol.76 (3), p.241-256
1. Verfasser:	PETTERSSON REIF, B. A
Format:	Artikel
Sprache:	eng
Schlagworte:	Exact sciences and technology Flows in ducts, channels, nozzles, and conduits Fluid dynamics Fundamental areas of phenomenology (including applications) Physics Turbulence simulation and modeling Turbulent flows, convection, and heat transfer
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Zusammenfassung:	A phenomenological method has been used to derive a nonlinear constitutive relationship that can be used in conjunction with any eddy-viscosity model utilizing the elliptic relaxation method. While retaining the merits of the elliptic relaxation to model near-wall turbulence, the new model also enables the turbulence anisotropy to be faithfully predicted in wall-bounded flows.
ISSN:	1386-6184 1573-1987
DOI:	10.1007/s10494-006-9013-y