Accurate and computationally efficient mixing models for the simulation of turbulent mixing with PDF methods

2013 ◽  
Vol 247 ◽  
pp. 192-207 ◽  
Author(s):  
Daniel W. Meyer ◽  
Patrick Jenny
Keyword(s):  
Turbulent Mixing ◽  
Mixing Models ◽  
Computationally Efficient ◽  
Pdf Methods

Turbulent Mixing Models and Other Mixing Coefficients in Subchannel Codes—A Review Part A: Single Phase

2020 ◽  
Vol 206 (9) ◽  
pp. 1253-1295
Author(s):  
Aiguo Liu ◽  
Bao-Wen Yang ◽  
Bin Han ◽  
Xianlin Zhu
Keyword(s):  
Turbulent Mixing ◽  
Single Phase ◽  
Mixing Models ◽  
Mixing Coefficients

The effect of turbulent mixing models on the predictions of subchannel codes

1994 ◽  
Vol 149 (1-3) ◽  
pp. 221-231 ◽  
Author(s):  
A. Tapucu ◽  
A. Teyssedou ◽  
P. Tye ◽  
N. Troche
Keyword(s):  
Turbulent Mixing ◽  
Mixing Models

Review of turbulent mixing models

2009 ◽  
Vol 29 (6) ◽  
pp. 1703-1720 ◽  
Author(s):  
Baolian Cheng
Keyword(s):  
Turbulent Mixing ◽  
Mixing Models

An investigation of the performance of turbulent mixing models

2004 ◽  
Vol 136 (1-2) ◽  
pp. 208-216 ◽  
Author(s):  
Zhuyin Ren ◽  
Stephen B. Pope
Keyword(s):  
Turbulent Mixing ◽  
Mixing Models

A Computationally Efficient Method That Predicts Light-Around for Both Gas- and Liquid-Fueled Combustion

2021 ◽  
Author(s):  
Ellen Meeks ◽  
Chitralkumar V. Naik ◽  
Giuliana Litrico ◽  
Samir Rida
Keyword(s):  
Turbulent Mixing ◽  
Liquid Fuel ◽  
Laboratory Experiments ◽  
Test Cases ◽  
High Fidelity ◽  
Computationally Efficient ◽  
Routine Design ◽  
Large Eddy ◽  
Computationally Intensive ◽  
Design Analyses

Abstract Controlling light-around and re-light presents design challenges for gas-turbine manufacturers. Researchers have studied the detailed phenomena in laboratory experiments to elucidate controlling factors and modes of behavior. Several groups have reported high-fidelity simulations of the fluid dynamics, turbulent mixing and light-around phenomena using large eddy simulations (LES) on highly refined computational meshes. While such simulations can reproduce experimental observations, they are computationally expensive and tend to be impractical for routine design analyses. In this work, we present a less computationally intensive CFD approach, which has been tested against laboratory experiments using both gaseous-fuel injections and liquid-fuel injections. Results show that a consistent practice of mesh and model settings can be used for all the test cases considered. The simulations generate light-around sequences and total-ignition times that agree well with experimental measurements. Observed trends are predicted when varying burner spacing as well as the fuel and injection method.

Turbulent mixing in uniform channels of irregular cross-section

1994 ◽  
Vol 32 (1) ◽  
pp. 67-86 ◽  
Author(s):  
R. I. Nokes ◽  
G. O. Hughes
Keyword(s):  
Cross Section ◽  
Turbulent Mixing
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