[yiwang25]

Hello, all
I want someone to help me on openfoam's sutherland part. It is as follows:

inline Foam::scalar Foam::sutherlandTransport<Thermo>::alpha
{
.......................
scalar CpBar =
(deltaT*(this->H(T) - this->H(specie::Tstd)) + Cp_)/(sqr(deltaT) + 1);
return mu(T)*Cv_*(1.32 + 1.77*this->R()/Cv_)/CpBar;
}
I am confused about Cp and alpha. In my opinion, alpha=mu(T)*Cp_.
Why use above fomula to calculate alpha?