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June 19, 2015, 05:46 |
Poiseuille flow - wrong velocity
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#1 |
New Member
Kathrin Burckhardt
Join Date: Jun 2015
Posts: 1
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Hello,
I'm trying to simulate Poiseuille flow in a standard pipe (length 0.05m, radius 0.0025m, pressure drop 2.56 Pa, viscosity 0.001, density 1000), but I get a wrong velocity profile. The maximal velocity should be at 0.080m/s, but I get a maximum of 0.06m/s. Can somebody please confirm that the following set-up is correct: file ../0/p: inlet { type fixedValue; value uniform 0.00256; } outlet { type fixedValue; value uniform 0.0; } wall { type zeroGradient; } file ../0/U: inlet { type pressureInletVelocity; phi phi; rho rho; value uniform (0 0 0); } outlet { type zeroGradient; } wall { type fixedValue; value uniform (0 0 0); } Thanks a lot in advance! |
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Tags |
pressure driven flow, velocity profile |
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