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October 14, 2010, 09:38
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turbulent intensity
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#1 |
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Member
Join Date: Apr 2010
Posts: 63
Rep Power: 16   |
hi every body !!!!!!!
 i wanna know that how i can calculate turbulent intensity for my case , in fluent !!  i find this relation for fully developed flow in tube I=0.16*(Re(dh))^(-1/8) !!! but my geometry isnt tube !!!! its 3D, in inlet has rectangular cross section, & in outlet a cylinderical Cross section  !!!! its alittle complex !!!!!Plz help me !!!!!!!!!!!!!  SaHa
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October 15, 2010, 01:24
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#2 |
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Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
Posts: 3,297
Rep Power: 41 |
Dh is the hydraulic diameter.
Dh = 4.A / P with A = Area and P=perimeter
__________________
In memory of my friend Hervé: CFD engineer & freerider  |
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October 15, 2010, 09:24
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#3 |
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Member
Join Date: Apr 2010
Posts: 63
Rep Power: 16 |
hi dear !
i know that! but i dont know that can i use this relation for a geometry that isnt a tube!!!!!!!!!! like spiral casing !!!!! if its not possible what is the other relation for calculating turbulent intensity in fluent?????/SaHa
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