Hi All,

What is the desired Y+ value for RSM Model?

Adarsh

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- Last Post 11 January 2019
- Topic Is Solved

ashiadarsh
posted this
08 January 2019

Hi All,

What is the desired Y+ value for RSM Model?

Adarsh

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 useful..my 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.

Thanks,

Adarsh

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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