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July 22, 2015, 11:51 |
negative velocity inlet
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#1 |
Member
Join Date: Jan 2014
Posts: 40
Rep Power: 12 |
Hi,
I wrote a field function to control the inlet velocity of a boundary: cos(${Time}*2*3.14*2)*10 It works until the velocity reaches 0 and then rises again, I never get a negative velocity at the inlet. I ran reports, which showed that the output of the field function was indeed negative, but Star CCM+ turned it into a positive value for the velocity inlet. It seems like a velocity inlet cannot be used as an outlet by simply putting a minus in front of the value. What would you do to accomplish this? kind regards, hebeldebel |
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July 22, 2015, 17:33 |
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#2 |
Senior Member
Matt
Join Date: Aug 2014
Posts: 947
Rep Power: 18 |
maybe try using a mass flow inlet? I know those can go negative.
honestly, this seems like a bug. you may want to submit it to CD-Adapco so they can resolve it. |
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