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Meshing for rectangular duct |
| View Poll Results: Which turbulence model is most frequently used? | |||
| k-epsilon stnd. |
   
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2 | 66.67% |
| k-epsilon RNG |
  
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1 | 33.33% |
| k-epsilon Real. |
  
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0 | 0% |
| k-omega stnd |
  
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0 | 0% |
| k-omega SST |
  
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1 | 33.33% |
| Multiple Choice Poll. Voters: 3. You may not vote on this poll | |||
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July 19, 2014, 07:11
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Meshing for rectangular duct
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#1 |
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New Member
Mehmet SENER
Join Date: Jul 2014
Posts: 4
Rep Power: 11  |
Hello everyone,
I am a new user in FLUENT. I have been investigate turbulence flow in rectangular duct. I tried to use lots of mesh type on model but I didnt adapt to Dittus-Boelter correlation for Avaraged Nusselt Number. My model is 80x80x200 mm rectangular duct, Re:10 000 so that dittus boelter appx. 32 . But I found between 55-87 at same Re value. Turbulence model is k-epsilon, y+ is changing between 0,1-1,2(y+<5) . FL thickness is 0,0498 mm. I tried to select between 10-35 layers in Inflation but not achieved. Can you explain me how to decrease A. Nusselt Number to dittus boelter value? Thanks. |
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December 11, 2015, 07:41
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#2 |
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New Member
wangzhijun
Join Date: Aug 2013
Posts: 5
Rep Power: 12 |
it is interesting...
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