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-   -   How to give mass flow inlet boundary condition (http://www.cfd-online.com/Forums/cd-adapco/56171-how-give-mass-flow-inlet-boundary-condition.html)

kiran July 5, 2007 12:35

How to give mass flow inlet boundary condition
 
Hi friend, I have massflow data. I want to give it near inlet. dont want to give velocity components.

please suggest me the correct method .

thanks

kiran

Ben July 5, 2007 14:39

Re: How to give mass flow inlet boundary condition
 
in star-ccm+ just use a mass flow inlet, in star-cd calculate the velocity needed to get the required mass flux (mfr = rho * a * v) apply the velocity to the boundary and change the flux switch to velocity flux. Of course if you are using constant density it won't matter anyway....

kiran July 5, 2007 22:43

Re: How to give mass flow inlet boundary condition
 
yes i agree but in some cases, say if the inlet surface is not in one plane like concave and it didn't have proper mathematical description, i want to give massflux to that in normal direction to each face of the cell . then is there any possibility in starcd?


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