Boundary Conditions for UDS in which VOF is stored

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  • Last Post 17 April 2019
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gunjanauti posted this 16 April 2019

I want to calculate gradient of volume fraction. And I can't store the values temporary using solve set expert. So I have stored the C_VOF(c,t) in C_UDSI(c,t,0). What boundary conditions should I give to this scalar? I have given velocity inlet BC at inlet and outflow BC at outlet. I know the profile of volume fraction at inlet but at outlet I know neither the value nor the flux for this UDS. 

 

Thank you

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Kremella posted this 17 April 2019

Hello,

Could you please elaborate more? What is your physical model? What physics are you attempting to solve?

Thanks.

Best,

Karthik

abenhadj posted this 17 April 2019

Uds is only is just container for the variable so do not solve its transport equation. But why is solver set expert not enough for you?

Best regards,

Amine

gunjanauti posted this 17 April 2019

I am using  a multiphase model and whilke using parallel solver, I can't store the values of gradient of C_VOF. And thanks, I was solving the equation for UDS that's why it was giving an error :'D.

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