A realizable explicit algebraic Reynolds stress model for compressible turbulent flow with significant mean dilatation

2013 ◽  
Vol 25 (10) ◽  
pp. 105112 ◽  
Author(s):  
I. A. Grigoriev ◽  
S. Wallin ◽  
G. Brethouwer ◽  
A. V. Johansson
Keyword(s):  
Turbulent Flow ◽  
Reynolds Stress ◽  
Reynolds Stress Model ◽  
Stress Model ◽  
Compressible Turbulent Flow ◽  
Algebraic Reynolds Stress Model

Simulation of the Strongly Swirling Aerodynamic Field in a Vortex Combustor

1992 ◽  
Vol 114 (3) ◽  
pp. 367-374 ◽  
Author(s):  
Sen Nieh ◽  
Jian Zhang
Keyword(s):  
Turbulent Flow ◽  
Reynolds Stress ◽  
Isotropic Turbulence ◽  
Cold Test ◽  
Reynolds Stress Model ◽  
Stress Model ◽  
Test Models ◽  
Aerodynamic Field ◽  
Algebraic Reynolds Stress Model ◽  
Isotropic Turbulent Flow

This paper presents the simulation of the strongly swirling aerodynamic field in a coal-fired vortex combustor (VC) recently developed for commercial heating applications. A new version of algebraic Reynolds stress model was employed for the closure of non-isotropic turbulence. The calculated results of the 25 cm I.D. bench-scale and the 61 cm I.D. full-scale VC cold test models showed the pertinent aerodynamic features of the VC in terms of strongly swirling, developing, recirculating, and non-isotropic turbulent flow. The dynamic similarity was generally maintained for VCs of different scales.

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