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March 25, 2013, 03:18 |
open channel
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#1 |
New Member
abdollahi
Join Date: Nov 2012
Posts: 16
Rep Power: 13 |
hi
there is an open channel with 8*0.6*0.4 m dimentions.which has two outle, one of them at the end of channel and another is at the side wall in 4.5 meter from entrance of channel., inlet flow is assumed 35 lit/s,but outlet flow from end of channel is 30 lit/s and outlet from side wall is near 3 lit/s and continuity principal can not supported this model. 35 ? 30+3 I want to guide me . U inlet air type fixedValue; value uniform(0.0004 0 0); inlet water type flowRateInletVelocity; flowRate 0.035; outlet type zeroGradient; outlet side wall type inletOutletVelocity; inletValue uniform (0 0 0); value uniform(0 0 0); atmosphere type pressureInletoutletVelocity; value uniform (0 0 0); walls type fixedValue; value uniform(0 0 0); ----------------------------------------------------- P-rgh inlet air type zeroGradient; inlet water type zeroGradient;; outlet type totalPressure; p0 uniform 1e05; U U; phi phi; rho rho; psi none; gamma 1; value uniform 0; outlet side wall type totalPressure; p0 uniform 1e05; U U; phi phi; rho rho; psi none; gamma 1; value uniform 0; atmosphere type totalPressure; p0 uniform 1e05; U U; phi phi; rho rho; psi none; gamma 1; value uniform 0; walls type buoyantPressure; value uniform 0; -------------------------------------------------------------- alpha1 inlet air type fixedValue; value uniform 0; inlet water type fixedValue; value uniform 1; outlet type zeroGradient; outlet side wall type zeroGradient; atmosphere type inletOutlet; inletValue uniform 0; value uniform 0; walls type zeroGradient; |
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March 25, 2013, 06:19 |
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#2 |
New Member
abdollahi
Join Date: Nov 2012
Posts: 16
Rep Power: 13 |
of course , I used interfoam and K-epsilon model
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March 25, 2013, 09:36 |
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#3 |
Senior Member
Nima Samkhaniani
Join Date: Sep 2009
Location: Tehran, Iran
Posts: 1,266
Blog Entries: 1
Rep Power: 24 |
i prefer to test with fixedValue for pressure at outlets, and disable k-epsilon model for now
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