Intermittency Transport Equation
The transport equation for the intermittency
(1550)
where:
is the density. is the mean velocity vector. is the dynamic viscosity. is the turbulent eddy viscosity. is a Model Coefficient. is the Production Term. is the Destruction Term.
For details on how
Production Term
The transition production term is defined as:
(1551)
where
(1552)
with:
(1553)
(1554)
(1555)
and:
-
is the modulus of the mean strain rate tensor, see Eqn. (1129). -
is the turbulent Reynolds number given by Eqn. (1136) for the Gamma transition model and Eqn. (1137) for the SA Gamma transition model. -
is the strain-rate Reynolds number given by Eqn. (1139). -
is a Model Coefficient. -
is the critical momentum thickness Reynolds number. See Correlation for ReTheta_c.
Destruction Term
The destruction/relaminarization term is defined as:
(1556)
where:
(1557)
-
and are Model Coefficients. -
is the modulus of the mean vorticity tensor, see Eqn. (1131).
Model Coefficients
|
|
|
|
---|---|---|---|
1 | 0.06 | 50 | 2.2 |