Although the common linear model is utilized widely in commercial and non-commercial codes but still have some weakness in the prediction of the anisotropy of turbulence. In another hand, The cost of computation for higher-order models has made them unuseful for complex and industrial problems. Cost and benefits showed that non-linear models such as Craft-Launder-Suga (CLS) are an appropriate choice. Here an in-house code is written for linear and non-linear CLS
models to solve channel flow in Re=5600 and 14000. The results below show the performance of the written code.
| Linear model | Nonlinear model |
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@article{craft1996development, title={Development and application of a cubic eddy-viscosity model of turbulence}, author={Craft, TJ and Launder, BE and Suga, K}, journal={International Journal of Heat and Fluid Flow}, volume={17}, number={2}, pages={108--115}, year={1996}, publisher={Elsevier} }