Computation of highly swirling confined flow with a Reynolds stress turbulence model

Journal Article · Sat Dec 31 23:00:00 EST 1988 · AIAA J.; (United States)

DOI:https://doi.org/10.2514/3.10094· OSTI ID:6033240

Leschziner, M A; Hogg, S

The ability of a turbulence model to capture the interaction between swirl and the turbulent stress field is, therefore, crucial to the predictive performance of the computatinal scheme as a whole. A finite-volume procedure is used here to contrast the performance of the k-epsilon eddy-viscosity model with that of a Reynolds-stress transport closure. It is shown that the former returns a seriously excessive level of turbulent diffusion and misrepresents the experimentally observed flow characteristics. In contrast, the Reynolds-stress model successfully captures the subcritical nature of the flow by returning significantly lower levels of the shear stress components and predicts velocity and turbulence fields that are in good agreement with corresponding measurements. 22 references.

• Research Organization: Manchester Victoria Univ. (England)
• OSTI ID: 6033240
• Journal Information: AIAA J.; (United States), Journal Name: AIAA J.; (United States) Vol. 27; ISSN AIAJA
• Country of Publication: United States
• Language: English

Related Subjects

640410* -- Fluid Physics-- General Fluid Dynamics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COMBUSTION CHAMBERS
DIFFUSION
FLOW MODELS
FLUID FLOW
FORECASTING
GEOMETRY
INTERACTIONS
MATHEMATICAL MODELS
MATHEMATICS
PERFORMANCE
SHEAR
STRESSES
TURBULENCE
VELOCITY
VISCOSITY
VORTEX FLOW