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-   -   about mass source for species (http://www.cfd-online.com/Forums/fluent/32162-about-mass-source-species.html)

lu September 18, 2003 10:11

about mass source for species
 
Hello! I want to add mass source for destination species using UDS in FLUENT4.But I can not understand the content in URSTRM.Give me some advice,thanks.

thomas September 22, 2003 03:57

Re: about mass source for species
 
Hey, Can you explain what URSTRM is ?

Allan Walsh September 22, 2003 18:57

Re: about mass source for species
 
It isn't that straight forward, but works okay. Can you just set sources at boundaries using Fluent menus? You can just use the SMASEX(L,i) variable for the source of species i in cell L and let Fluent take care of the rest. Good Luck.

lu September 23, 2003 22:01

Re: about mass source for species
 
Thank you very much.If I want to add species in whole field,how to do?

Allan Walsh September 24, 2003 11:16

Re: about mass source for species
 
For L = first active cell to last active cell, set SMASEX for species i to source value (in kg/s). This can be done in any active user subroutine (that has #INCLUDE statement for correct variable). Make sure mass balance balances (i.e. using Total zone integral in View alpha). It may take one more tweak.


lu September 25, 2003 22:29

Re: about mass source for species
 
Thank you very much!I have some questions more,can I chat with you online? my MSN messenger is forestmood@hotmail.com


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