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April 18, 2011, 09:30 |
Surface Roughness
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#1 |
New Member
Join Date: Apr 2011
Posts: 2
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Hi,
Does anyone know if it is possible to enter a friction coefficient or surface roughness in FloWizard? If not, how would you account for the increased losses associated with running say a smooth versus a cast iron pipe? Thanks |
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April 21, 2011, 08:05 |
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#2 | |
New Member
Join Date: Jun 2009
Posts: 11
Rep Power: 16 |
Quote:
surface roughness is an optional item in CFX or Fluent. it is not a real one but an equivalent sand size, Remember, the roughness value should be smaller than the mesh height of first layer close to the wall. For detailed definition related to surface roughness, SEE NACA TM 1292 LAWS OF FLOW IN ROUGH PIPES or other papers. |
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