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October 17, 2018, 12:11
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Flow over 4 airfoils in STAR-CCM+ -2D case
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#1 |
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Member
JOHN SHERJY SYRIAC
Join Date: May 2018
Posts: 35
Rep Power: 7  |
Hi
I am trying to simulate flow over 4 airfoil one kept in the wake of another airfoil in 2D case. Rectangular domain is taken as the flow domain with K-omega model with polyhedral mesh. Chord length c= 0.605m Top and bottom surface = 5c -(symmetry plane) inlet velocity =109 m/s outlet = Pressure outlet I am not able to get the predicted flow output. After some time, there is zero velocity zones in the domain. I have no clue why is it happening. It would be grateful if anyone could help me figure out the problem. I hereby attach the velocity scalar scene of the flow. Thank you in advance |
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October 17, 2018, 13:42
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#2 |
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Senior Member
Matt
Join Date: Aug 2014
Posts: 947
Rep Power: 17 |
How many iterations? What do your residuals look like? How are you initializing the solution?
You need to provide more info. |
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October 18, 2018, 23:09
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#3 |
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Member
JOHN SHERJY SYRIAC
Join Date: May 2018
Posts: 35
Rep Power: 7 |
time step = 7.989*10^-5
the problem happens after around 0.5sec the residuals converge upto less than 10^-4 |
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| Tags |
| airfoil 2d, star-ccm+ |
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Linear Mode
