12.7.5 Effects of Buoyancy on Turbulence
The production terms due to buoyancy are modeled as
(12.7-26)
where Pr
is the turbulent Prandtl number for energy, with a default value of 0.85.
Using the definition of the coefficient of thermal expansion,
, given by Equation
12.4-24
, the following expression is obtained for
for ideal gases:
(12.7-27)
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12.7 Reynolds Stress Model
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12.7.6 Modeling the Turbulence
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