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Old   June 1, 2005, 20:50
Default Specifying turbulent intensity
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ken
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hi I'm simulating turbulent flow in a rectangular channel with a circular inlet. Physically, the circular inlet allows connection to a pipe/tube.

The fluid is conveyed either by a positive displacement screw pump or a diaphragm pump. My question is, what turbulent intensity and length scale shoud I specify?
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Old   June 1, 2005, 22:37
Default Re: Specifying turbulent intensity
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us
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I think it's appropriate to use Intensity and Hydraulic diameter option to specify turbulence boundary quantities. You know the hydraulic dia. and turbulent intensity is roughly equal to 4 for Reynolds number of 50000. Regards, -US
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Old   June 1, 2005, 22:46
Default Re: Specifying turbulent intensity
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ken
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Thanks. Is there a relation between inentsity and Re? My Re ranges from laminar to 12,000.
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Old   June 2, 2005, 01:28
Default Re: Specifying turbulent intensity
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pUl|
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http://www.fluentusers.com/fluent61/...e178.htm#26307
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Old   June 2, 2005, 01:34
Default Re: Specifying turbulent intensity
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ken
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I'm not a registered user... can't register as I'm not the license admin...
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Old   June 2, 2005, 02:40
Default Re: Specifying turbulent intensity
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pUl|
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Check your email.
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Old   June 2, 2005, 02:50
Default Re: Specifying turbulent intensity
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ken
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Thanks!
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