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Old   January 7, 2010, 01:58
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Yi-Lang Chen
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Dear exprts:

I try many times to add particle(marker particle) in the fluid. When I use specific pressure boundary condition to set fluid height, then I can success to add particle in the fluid. But I use volume fluid rate or specific velocity boundary condition, then I can't see any particle in the fluid. Why?

P.S I use add block and give number in x- y- z- direction.

Thanks your help! Please help me..........

Last edited by Andy Chen; January 7, 2010 at 22:27.
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Old   January 11, 2010, 01:11
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michael barkhudarov
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Quote:
Originally Posted by Andy Chen View Post
Dear exprts:

I try many times to add particle(marker particle) in the fluid. When I use specific pressure boundary condition to set fluid height, then I can success to add particle in the fluid. But I use volume fluid rate or specific velocity boundary condition, then I can't see any particle in the fluid. Why?

P.S I use add block and give number in x- y- z- direction.

Thanks your help! Please help me..........
Are the particles not there at all, even at t=0? Do you have fluid initially in the domain? Marker particles can only exists inside fluid, if there is no fluid, the particles will not be initialized.
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Old   January 11, 2010, 03:30
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Yi-Lang Chen
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Originally Posted by MuxaB View Post
Are the particles not there at all, even at t=0? Do you have fluid initially in the domain? Marker particles can only exists inside fluid, if there is no fluid, the particles will not be initialized.
I don't set initial condition. So, you mean that I have to set initial condition. Then, marker particles will exist in the fluid when I use volume fluid rate boundary condition.

Thanks your reply, MuxaB
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