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Oh I thought I was trying to do something stupidly simple to start with... grrrr |
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January 3, 2013, 05:29 |
Oh I thought I was trying to do something stupidly simple to start with... grrrr
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#1 |
New Member
DDB
Join Date: Jan 2013
Posts: 12
Rep Power: 13 |
ok, this is ridiculously stupid and I am unbelievably frustrated... I am a newbie to foam and I can't see me sticking around for long if this continues!
I have v2.1.1 installed, the official rpm for f17. I have a channel, 15ftx7.5ftx3ft, a stupidly coarse grid for testing purposes of just over 21k cells. I have modified the file from the lid driven cavity to produce my channel in blockMesh. I am using simpleFOAM. I have done loads of tutorials, the problems arise when I try to do my own stuff I want to have a velocity inlet and a pressure outlet. I want my velocity to be a positive (say 70m/s in x direction). I have no patience with paraview, it seems totally unintuitive to me, so I am converting to fluent to check things as this works for me. Why does my velocity inlet read into fluent as a pressure outlet? Why does my pressure outlet velocity always end up equalling the exact negative of the velocity inlet when I have 'run' the simulation? I can get things to work perfectly when I create the initial mesh in blockmesh, read into fluent, change the bits that are totally wrong, save as a case, convert back to foam and then run - but what good is that if I want to use free software????? Please, someone, what is going on here? |
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