[epc1]

Hello:

I´ve succesfully compiled and used a customized mass diffusion udf for a binary mixture. However when i extend the udf to 7 species i get a warning message that tells me the mass diffusivity is zero. The funny thing is that the user defined memories show the correct value for the variables that are used to calculate the diffusivities. Also, the diffisivity for the first 2 species is also being calculated and displayed correctly when i initialize the case.

Any thoughts on how i could solve this issue?


Thanks in advance.