K-epsilon Solver

March 8, 2005, 10:05

hello, I would like to know how to settled up the k and epsilone factors for the velocity inlet while I am using the K-epsilon solver. I am studying a Formula one rear wing, where I have U=75[m/s] From some lectures I had the following formulas: k=3/2(U.Ti) where Ti=5% which gave me: k=22[m2/s2] and epsilon=C(mu)^(3/2).k^(3/4)/0.07L where C(mu)=0.09 and I have: epsilon=730[m2/s3] I think my results are too big and I hope someone there can help me on this problem thanks Antoine

March 8, 2005, 11:28

Hi,

The epsilion is aproximately

eps= k^(3/2) / L

Regards, Zsolti

March 8, 2005, 10:05	K-epsilon Solver	#1
Antoine Guest Posts: n/a	hello, I would like to know how to settled up the k and epsilone factors for the velocity inlet while I am using the K-epsilon solver. I am studying a Formula one rear wing, where I have U=75[m/s] From some lectures I had the following formulas: k=3/2(U.Ti) where Ti=5% which gave me: k=22[m2/s2] and epsilon=C(mu)^(3/2).k^(3/4)/0.07L where C(mu)=0.09 and I have: epsilon=730[m2/s3] I think my results are too big and I hope someone there can help me on this problem thanks Antoine

March 8, 2005, 11:28	Re: K-epsilon Solver	#2
zsolt draga Guest Posts: n/a	Hi, The epsilion is aproximately eps= k^(3/2) / L Regards, Zsolti

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