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-   -   How to define mass flow rate using UDF? (http://www.cfd-online.com/Forums/fluent/35292-how-define-mass-flow-rate-using-udf.html)

SAMUEL December 16, 2004 03:50

How to define mass flow rate using UDF?
 
Hi,

I have triied to define mass flow rate using UDF for unsteady calculation but unsuccessfully. The mass flow rate is a linear function of the time t (e.g. : q=a*t+b). Could someone tell me how to do this?

Regards

Andrew Garrard December 16, 2004 06:17

Re: How to define mass flow rate using UDF?
 
I am afraid that we will probably need more information. Why is it unsuccessful? What error message, if any, are you getting. Also, can we see your UDF source code?

SAMUEL December 16, 2004 09:30

Re: How to define mass flow rate using UDF?
 
Hi Andrew,

Thanks a lot for your answer. After many tries, we have found the solution by defining mass flux using UDF and not mass flow rate.

Regards

as December 25, 2004 01:36

Re: How to define mass flow rate using UDF?
 
Hello i am intersting in you UDF,can you tell me how you solve your problem or can you give me you UDF source.Thank you


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