Question about UDS diffusivity
 

Hello,

I have a question about UDS diffusivity: why the default value for any constant UDS diffusivity is 1 kg/m^2-s? If my understanding is correct, the diffusivity of air is only 10^-5 something.:confused:

Thank you for your answer.

hi, I found the same question with you, but I saw this thread now, have you understand this question? can you help me? thank you!