About shear stress, need help!!
I want to define the Marangoni stress at a liquid free surface boundary. Marangoni stress is written as follows: del(sigma)=d(sigma)/dT*del(T).
In FLUENT's UDF, we can use cell variations macros to define del(T). For example, dT/dx=C_T_G(c,t).But for face variations, FLUENT don't define corresponding macros, i.e., there is not F_T_G(c,t).
So, I want to know how to define del(T) at a face.
In addition, I want to know how to define cell variations macros in cylindrical coordinates. For example, dT/dr=?
Thank you in advance!
Re: About shear stress, need help!!
Who can ask my questions?
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