Implicit turbulence modeling for high reynolds number flows.

Conference · Sun Dec 31 23:00:00 EST 2000

DOI:https://doi.org/10.2514/6.2002-1129· OSTI ID:975830

Margolin, L G; Smolarkiewicz, P K ^[1]; Wyszogrodzki, A A ^[2]

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1. Piotr K.
2. Andrzej A.

We continue our investigation of the implicit turbulence modeling property of the nonoscillatory finite volume scheme MPDATA. We start by comparing MPDATA simulations of decaying turbulence in a triply periodic cube with analogous pseudospectral studies. In the regime of direct numerical simulation, MPDATA is shown to agree closely with the pseudospectral model. As viscosity is reduced, the two model results diverge. We study the MPDATA results in the inviscid limit, using a combination of mathematical analysis and computational experiment. We validate the inviscid MPDATA results as representing the turbulent flow in the limit of very high Reynolds number.

• Research Organization: Los Alamos National Laboratory
• Sponsoring Organization: DOE
• OSTI ID: 975830
• Report Number(s): LA-UR-01-5836
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICS AND COMPUTING
REYNOLDS NUMBER
SIMULATION
TURBULENCE
TURBULENT FLOW
VISCOSITY