Improvement of the Mellor – Yamada Turbulence Closure Model Based on Large-eddy Simulation

@inproceedings{Nakanishi2001ImprovementOT,
  title={Improvement of the Mellor – Yamada Turbulence Closure Model Based on Large-eddy Simulation},
  author={M Nakanishi},
  year={2001}
}
On the basis of data constructed with large-eddy simulation (LES), an attempt is made to improve the Mellor–Yamada (M–Y) turbulence closure model. Firstly, stably-stratified and convective planetary boundary layers without moisture are simulated by a LES model to obtain a database for the improvement. Secondly, based on the LES data, closure constants are re-evaluated and a new diagnostic equation for the master length scale L is proposed. The new equation is characterized by allowingL in the… CONTINUE READING
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