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IDProjectCategoryView StatusDate SubmittedLast Update
0000286OpenFOAMBugpublic2011-09-06 09:402014-02-10 13:14
Reporteruser171Assigned Touser21 
PrioritynormalSeverityminorReproducibilityalways
Status closedResolutionfixed 
PlatformLinuxOSUbuntuOS Version11.04
Summary0000286: kOmegaSST model wrong implementation of the production term
DescriptionThe production term in the omega equation is wrongly implemented (as of the version 2003, by Menter). The implementation reads

(alpha*S2)

for the incompressible version of the model, but should be

alpha*G/nut

where G is then Pk in the paper. The paper was subsequently corrected (see SST-2003 on http://turbmodels.larc.nasa.gov/sst.html ), and the term is still the same in the OF model. It is described as a typographical error for the paper.
Additional InformationPaper used:

Menter, F. R., Kuntz, M., and Langtry, R., "Ten Years of Industrial Experience with the SST Turbulence Model," Turbulence, Heat and Mass Transfer 4, ed: K. Hanjalic, Y. Nagano, and M. Tummers, Begell House, Inc., 2003, pp. 625 - 632.
TagsNo tags attached.

Activities

user21

2011-09-09 14:14

  ~0000646

I can not see the discrepancy between your reference (http://turbmodels.larc.nasa.gov/sst.html) and
the reference stated on the header file of the model
(Menter, F., Esch, T.
 "Elements of Industrial Heat Transfer Prediction"
 16th Brazilian Congress of Mechanical Engineering (COBEM),
 Nov. 2001)
regarding the production term of the Omega Eq.

I'd need further clarification.

Thanks

user171

2011-09-12 08:10

  ~0000648

Last edited: 2011-09-12 08:17

 The discrepancy is described under "Menter SST Two-Equation Model from 2003 (SST-2003)" on the website, where they state that the production term has changed.

But I must have read the year wrong in the header file. Since I don't have the paper at hand, I can't double check this. Except for the production term, everything is the same. Either the model from 2003 is a corrected model (compared to 2001) or an alternative new model, with a different source term (equation (1) in Menter, F. R., Kuntz, M., and Langtry, R., "Ten Years of Industrial Experience with the SST Turbulence Model," Turbulence, Heat and Mass Transfer 4, ed: K. Hanjalic, Y. Nagano, and M. Tummers, Begell House, Inc., 2003, pp. 625 - 632. )

Issue History

Date Modified Username Field Change
2011-09-06 09:40 user171 New Issue
2011-09-09 14:11 user21 Assigned To => user21
2011-09-09 14:11 user21 Status new => assigned
2011-09-09 14:14 user21 Note Added: 0000646
2011-09-12 08:10 user171 Note Added: 0000648
2011-09-12 08:17 user171 Note Edited: 0000648
2012-04-02 17:40 user21 Status assigned => closed
2012-04-02 17:40 user21 Resolution open => fixed