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-   -   A question in partical thansport (http://www.cfd-online.com/Forums/cfx/19402-question-partical-thansport.html)

Danney January 2, 2003 09:01

A question in partical thansport
 
I am calc a partical transport problem with cfx4.4. I dont know how to set the boundary condition of wall, that is, how can I specify a coefficient of restitution for a specific wall and particle size. Is it in the commond file or user fortran?

Jan Rusås January 2, 2003 12:02

Re: A question in partical thansport
 
It is only possible in the command file to set a global restitutions coeffecient. If you want one that depends on, speed, angle, size etc. you would need user fortran.

Danney January 4, 2003 23:58

Re: A question in partical thansport
 
HI, JAN: Many thanks for your response.And I have an another question that why cannot get the value of volume fraction. Thank you very much!

Danney

henry January 13, 2003 10:01

Re: A question in partical thansport
 
Hi,

what is coefficient of restitution?

thanks


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