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April 8, 2014, 23:15 |
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#62 |
Member
Abdulqadir Aziz
Join Date: Jan 2012
Posts: 45
Rep Power: 0 |
Hi Sijal,
Keep refining the mesh in the areas just upstream and downstream of the rotor |
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April 8, 2014, 23:18 |
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#63 |
Member
Paulo
Join Date: Jun 2011
Posts: 34
Rep Power: 15 |
I got this problem as well. When i refined around 24m at downstrem i started to get some results with 7% of error.
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June 25, 2014, 11:28 |
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#64 |
New Member
Mechanical engineer
Join Date: Oct 2013
Posts: 10
Rep Power: 13 |
Hii i simulate a wind turbine NREL in fluent the convergence is less than 10-4 BUT pressur coef IS LESS than the experemental i use MRF steady state whith k-epselon transition . i have a mesh of (inlet 5 radi and 8 radi in outlet)2.5 million with a BL a=0.0004 and 10 element in some station i have the same pressur coef 80% 95 % but note the same in 30% 46% in 13 m/s and above
my bc in velocity inlet ti=1% and visco turbulent =5 pressur outlet in farfeild and periodic condition 180° please help me (sorry for my english) if you have a mesh case and data please send to malikoualger@yahoo.fr please |
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Tags |
mrf, multiple reference frame, nrel, wind turbine |
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