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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Mixture Binary Diffusion Coefficient(INF Value) › Reply To: Mixture Binary Diffusion Coefficient(INF Value)

January 7, 2025 at 5:21 pm
djr6248
Subscriber

Hello Judy, 

I do not see anywhere which I can attach a file beside an umage. I used the link share button instead.  https://drive.google.com/file/d/1TeS3zPJV-Xm1sNWPYZR8dSetcDmPe4E9/view?usp=drive_link

To keep things simple, the archive file utilizes the opposed-flow_flame__h2_air example that is shipped with ANSYS Chemkin 2023 R2. I have modified the input file to utilize muticompnent diffusion, print level 3 and save transport properties. I have tried viewing the output file in the native Chemkin viewer as well as the Excel output with neither reporting actual values for diffusion coeffiecnts. What I get is: 

 Mixture_binary_diffusion_coefficients_H2_(cm2/sec) Mixture_binary_diffusion_coefficients_H_(cm2/sec) Mixture_binary_diffusion_coefficients_O2_(cm2/sec)
          inf          inf          inf

Hopefully I am missing something simple! 

 

Thank you!