RSM Model

  • Last Post 11 January 2019
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ashiadarsh posted this 08 January 2019

Hi All,

  What is the desired Y+ value for RSM Model?


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rwoolhou posted this 08 January 2019

It depends on which near wall approach you're using: wall functions or resolving the viscous sub layer.  Read the User's and Theory Guides for wall treatment. 

ashiadarsh posted this 10 January 2019

Ok Thank You for the reply....Earlier Rahul Raghav has forwarded one article on this which was very understanding is that, if you want to resolve the viscous sub-layer,irrespective of which turbulence model you use(k-w SST,K-Epsilon or RSM) your Y+ should be below 5 or close to 1.Pls comment on that.



rwoolhou posted this 11 January 2019

Correct, but you also need to include suitable wall functions for RSM as the default is designed for  30 < y+ < 300  hence me advising you read up on the wall treatment. 

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