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#1 |
Member
JOHN SHERJY SYRIAC
Join Date: May 2018
Posts: 35
Rep Power: 4 ![]() |
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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#2 |
Senior Member
Matt
Join Date: Aug 2014
Posts: 847
Rep Power: 14 ![]() |
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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#3 |
Member
JOHN SHERJY SYRIAC
Join Date: May 2018
Posts: 35
Rep Power: 4 ![]() |
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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