LES or RANS ?
I'm trying to model a co-axial flow into a dead end tube.I hope to extract concentration profiles and velocity fields.
1. How do I decide between LES and RANS ?
2. Will my mesh be different for both the cases ?
3.How can I perform time averaging on the .dat files without having to extract specific columns from the file using MATLAB ?
Any tips will be greatly appreciated.
Many thanks !
Re: LES or RANS ?
1. Depends on what you are trying to achieve, your computational resources, Reynolds number, ...
2. For true LES, very different. For DES, possibly the same.
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