Modified Spalart-Allmaras one-equation turbulence model for rough wall boundary layers

Lee, Jaesoo; Paynter, Gerald C.

doi:10.2514/3.24106

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2002

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Cited by 12 publications

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“…The t92 model of Secundov [4] for example reduces the distance to the nearest wall d by the quantity k s (d e = d w +0:01k s ) to account for wall roughness. A modiÿed Spalart-Allmaras model for rough wall boundary layers is proposed in Reference [11] which also shifts the distance d by the value R = 0:…”

Section: Boundary Conditionsmentioning

confidence: 99%

A differential equation for approximate wall distance

Fares

Schröder

2002

Numerical Methods in Fluids

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SUMMARYA partial di erential equation to compute the distance from a surface is derived and solved numerically. The beneÿt of such a formulation especially in combination with turbulence models is shown. The details of the formulation as well as several examples demonstrating the in uence of its parameters are presented. The proposed formulation has computational advantages and can be favourably incorporated into one-and two-equation turbulence models like e.g. the Spalart-Allmaras, the Secundov or Menter's SST model.

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Section: Boundary Conditionsmentioning

confidence: 99%