# Turbulent intensity in Tecplot

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 December 17, 2012, 03:19 Turbulent intensity in Tecplot #1 New Member   nitin bansal Join Date: Jun 2012 Location: INDIA Posts: 27 Rep Power: 5 I am trying to draw Turbulent intensity contours in tech plot. I have tried it by doing writing equation as {intensity}=sqrt({Turbulent Kinetic Energy}) {intensity/uavg}=({i}/22.72) where, Uavg = average velocity But not able get correct contour as compared to contours seen in Fluent. Pls help

 March 4, 2013, 23:20 #2 New Member   Join Date: Jan 2013 Posts: 2 Rep Power: 0 You can export solution data of Turbulent intensity in Fluent, then import to Tecplot

 March 5, 2013, 17:16 hi dear friend #3 New Member   saeed Join Date: Feb 2013 Posts: 19 Rep Power: 4 to get ur ideal contour u should define a turbulence term in fluent software and it depended on the type of ur problem. High-turbulence case: High-speed flow inside complex geometries like heat-exchangers and flow inside rotating machinery (turbines and compressors). Typically the turbulence intensity is between 5% and 20% Medium-turbulence case: Flow in not-so-complex devices like large pipes, ventilation flows etc. or low speed flows (low reynolds number). Typically the turbulence intensity is between 1% and 5% Low-turbulence case: Flow originating from a fluid that stands still, like external flow across cars, submarines and aircrafts. Very high-quality wind-tunnels can also reach really low turbulence levels. Typically the turbulence intensity is very low, well below 1%. in simulation often u should enter a percent as turbulence intensity.tell me about ur problem

March 16, 2013, 00:59
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The right hand side of the first equation should change to
sqrt({Turbulent Kinetic Energy}*2.0/3.0).
It affects the value of TI but the contour should look similar. Also, the r.h.s of the second equation should change to ({intensity}/22.72). Do you happen to have a variable named "i" in your file?

Quote:
 Originally Posted by nitinbansal184 I am trying to draw Turbulent intensity contours in tech plot. I have tried it by doing writing equation as {intensity}=sqrt({Turbulent Kinetic Energy}) {intensity/uavg}=({i}/22.72) where, Uavg = average velocity But not able get correct contour as compared to contours seen in Fluent. Pls help

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