Modeling three-dimensional gas-turbine combustor model flow using second-moment closure

AIAA Journal ◽  
1994 ◽  
Vol 32 (7) ◽  
pp. 1416-1422 ◽  
Author(s):  
C. A. Lin ◽  
C. M. Lu
Keyword(s):  
Gas Turbine ◽  
Three Dimensional ◽  
Moment Closure ◽  
Gas Turbine Combustor ◽  
Second Moment ◽  
Model Flow ◽  
Second Moment Closure

Assessment of a Reynolds Stress Closure Model for Appendage-Hull Junction Flows

1995 ◽  
Vol 117 (4) ◽  
pp. 557-563 ◽  
Author(s):  
Hamn-Ching Chen
Keyword(s):  
Reynolds Stress ◽  
Eddy Viscosity ◽  
Stokes Equations ◽  
Three Dimensional ◽  
Moment Closure ◽  
Superior Performance ◽  
Navier Stokes ◽  
Second Moment ◽  
Eddy Viscosity Model ◽  
Second Moment Closure

A multiblock numerical method, for the solution of the Reynolds-Averaged Navier-Stokes equations, has been used in conjunction with a near-wall Reynolds stress closure and a two-layer isotropic eddy viscosity model for the study of turbulent flow around a simple appendage-hull junction. Comparisons of calculations with experimental data clearly demonstrate the superior performance of the present second-order Reynolds stress (second-moment) closure over simpler isotropic eddy viscosity models. The second-moment solutions are shown to capture the most important features of appendage-hull juncture flows, including the formation and evolution of the primary and secondary horseshoe vortices, the complex three-dimensional separations, and interaction among the hull boundary layer, the appendage wake and the root vortex system.

Nonlinear second moment closure consistent with shear and strain flows

AIAA Journal ◽  
1997 ◽  
Vol 35 ◽  
pp. 825-831
Author(s):  
Dirk G. Pfuderer ◽  
Claus Eifert ◽  
Johannes Janicka
Keyword(s):  
Moment Closure ◽  
Second Moment ◽  
Second Moment Closure
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