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Old   December 30, 2010, 08:33
Default T plus
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Przemek
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Hi,

does anyone know something about T+ parameter? I've got notice like below

+--------------------------------------------------------------------+
| ****** Notice ****** |
| The non-dimensional near wall temperature (T+) has been clipped |
| for calculation of Wall Heat Transfer Coefficient. |
| |
| Boundary Condition : Pipe_3 |
| T+ clip value = 1.0000E-10 |
| |
| If this situation persists and you are using the High Speed Model, |
| consider enabling Mach number based blending between low speed and |
| high speed wall functions. You can do so by specifying a Mach |
| number threshold as follows: |
| |
| EXPERT PARAMETERS: |
| highspeed wf mach threshold = 0.1 # default=0.0 (off) |
| END |
+--------------------------------------------------------------------+

and I don't know where lies the problem. I was looking in the documention but I haven't find anything about T+.

Thanks
Batis
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Old   February 4, 2011, 02:58
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Rafał Kryjak
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Did you solve it ?
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Old   February 4, 2011, 05:32
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I've solved the problem for this analysis but I still have no idea what is T+ parameter.
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Old   February 4, 2011, 08:30
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ok. but can you tell me how did you solve this problem.
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Old   February 4, 2011, 11:35
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As far as I remember a manipulation of timestep value have helped.
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