# Obtaining temperature at different positions

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 August 10, 2010, 13:17 Obtaining temperature at different positions #1 New Member   venom Join Date: Jul 2010 Posts: 2 Rep Power: 0 Dear all, I have modelled a turbine blade both in 2D and 3D. I want to find out the parameters at different portions of the output to find out the efficiency. But I do not understand to find the temperatures for all the cells on the face. Any help would be appreciated. Thank you

August 10, 2010, 18:50
#2
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Akinola
Join Date: Jul 2010
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Quote:
 Originally Posted by venom532 Dear all, I have modelled a turbine blade both in 2D and 3D. I want to find out the parameters at different portions of the output to find out the efficiency. But I do not understand to find the temperatures for all the cells on the face. Any help would be appreciated. Thank you
You can extrapolate the values of the face from the values in the interior. For instance, if you are using a cell centred finited volume method, the temperature at the face is (by linear "extrapolation"):

Tface = 1.5*Tn- 0.5*Tn-1
where Tn is the value next to the face and Tn-1 the one before it. I hope this helps

August 11, 2010, 04:32
#3
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venom
Join Date: Jul 2010
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Quote:
 Originally Posted by falopsy You can extrapolate the values of the face from the values in the interior. For instance, if you are using a cell centred finited volume method, the temperature at the face is (by linear "extrapolation"): Tface = 1.5*Tn- 0.5*Tn-1 where Tn is the value next to the face and Tn-1 the one before it. I hope this helps
thanx for your help. I will try doing this.

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