Implementation of the Low-Reynolds-number Chien model
I'm trying to implement the Chien model with OpenFoam, but I have some general doubts on the description of y+.
The Chien model uses y+ for the definition of the damping factors.
Suppose to describe a 2D duct flow in with the following configuration:
and U_t(x) = sqrt(tau_w(x) / rho)
y+, U_t, tau_w are functions of x!!!
It is necessary to define for each point (x,y) of the numerical domain the x coordinate in which define y+, U_t and tau_w.
In both points identified with " * ", tau_w must be evaluated in " , ".
But in the point " ° ", shall tau_w be associated with " , " or with " . " ?
Does anybody have experience on this aspect? What is the principle to adopt in this task?
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