Learning Forum

[894875960]

hi, I want to define the equilibrium ratio about interphase species mass transfer in FLUENT (red wireframe in the follow figure), but I don't find any example in udf manual, so I want to know the name about this function, such as,  DEFINE_MASS_TRANSFER(liq_gas_source,cell,thread,from_index,from_species_index,to_index,to_species_index) when define mass transfer coefficient, DEFINE_EXCHANGE_PROPERTY(custom_drag,cell,mix_thread,s_col,f_col) when define drag coefficient, or perhaps the former would work for my function as well？

[Rob]

Check 26.2.10.2.6 in https://ansyshelp.ansys.com/account/Secured?returnurl=/Views/Secured/corp/v242/en/flu_ug/flu_ug_sec_multiphase_setup.html%23flu_ug_sec_mphase_massxfr  and see if an example for DEFINE_MASS_TRANSFER  will load OK. It doesn't need to be what you want in the model, it's just to confirm it's the correct macro. 

[Rob]

Check 26.2.10.2.6 in https://ansyshelp.ansys.com/account/Secured?returnurl=/Views/Secured/corp/v242/en/flu_ug/flu_ug_sec_multiphase_setup.html%23flu_ug_sec_mphase_massxfr  and see if an example for DEFINE_MASS_TRANSFER  will load OK. It doesn't need to be what you want in the model, it's just to confirm it's the correct macro. 

[894875960]

Thanks！