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February 17, 2013, 12:37 |
problem icem cfd
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#1 |
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tmeysam92
Join Date: Jun 2011
Posts: 135
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Hi all,
i meshed my geometry in ICEM CFD, and it contains a cylindrical part and a nozzle part.(see the picture) the problem is that, i want to export mesh to fluent, but these two parts have different initial velocity in fluent. so how can i put different velocity for these two parts? i mean what should i do in ICEM CFD boundary condition? i have attached prj&blk&tin files. tanks in advance. |
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February 17, 2013, 14:48 |
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#3 | |
Senior Member
tmeysam92
Join Date: Jun 2011
Posts: 135
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Quote:
you right, there are not two parts, i mean the cylinder and nozzle. so, you mean i should use create part tool by using "blocking material, create part" for each one??? |
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February 17, 2013, 15:10 |
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#5 |
Senior Member
tmeysam92
Join Date: Jun 2011
Posts: 135
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if you look at below picture you will understand what i mean.
i want to have different initial velocity in fluent for fluid 1 and fluid 2, now what should i do?? is it right that i should use create body in geometry tab of icem cfd? |
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February 18, 2013, 00:52 |
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#7 |
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tmeysam92
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Posts: 135
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February 18, 2013, 19:02 |
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#9 |
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Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
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This is one of those times when "why?" would be a great question...
You should probably not be setting two velocities. You should set the inlet velocity and the velocity in the nozzle will be calculated... If you are just trying to speed things up and initialize with closer to final velocities, then you should be using the new hybrid initialization in Fluent... It basically generates a coarse background grid and then does a rough solve to work out initial velocities through the volume. These initial velocities are applied to the real solution as a great starting point.
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