Transformation of k and eps equations
Hi all,
in some papers using the SST komega model there's said, that the k and eps equations were transformed into the k and omega formulation. Does someone know a detailed reference, that shows how this transformation is done step by step. Regards, Marat 
Re: Transformation of k and eps equations
You might try Menter's paper(s) where he first introduces the SST model. They aren't overly detailed, but they do give the basic way his model combine the kepsilon and komega.
The references are: Menter, F. R., "Improved TwoEquation komega Turbulence Models for Aerodynamic Flows", NASA TM103975 . Menter, F. R., "Two Equation Eddy Viscosity Turbulence Models for Engineering Applications", AIAA Journal, Vol. 32, No. 8, August 1994. 
Re: Transformation of k and eps equations
I don't have any reference, but you should look to papers from Aupoix et al. if there is any.
The main idea is the following : let phi be any function of k and eps such as : phi = k^{alpha} * eps^{beta} it comes : (1/phi)d(phi)/dt = alpha * (1/k) d(k)/dt + beta * (1/eps)d(eps)/dt since d(k)/dt and d(eps)/dt are already known, it is possible to write the equation of any kind of phi. The difficulty is then to deal with the cross terms (coming form the viscous term). hope that helps, Sylvain 
Re: Transformation of k and eps equations
I forgot :
omega = eps/k 

All times are GMT 4. The time now is 18:38. 