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Should I consider compressibility in fan simulation? |
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May 20, 2011, 11:28
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Should I consider compressibility in fan simulation?
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#1 |
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Member
Ivan
Join Date: May 2009
Posts: 85
Rep Power: 16  |
Hi all,
The fan has a diameter of about 0.8m and speed at 3000rpm. I want to get the fan power, static pressure rise across the fan, and fan efficiency. Should I use compressible flow or incompressible flow? How much difference will that make? Thanks a lot, Ivan |
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May 21, 2011, 07:56
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#2 |
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Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,703
Rep Power: 143 |
Why not run both and find out for yourself?
But in general when the Mach number is under 0.3 the difference between compressible and incompressible flow is under 1%. |
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| compressibility, fan simulation |
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