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physics.flu-dyn2022
Logarithmic profiles of velocity in stably stratified atmospheric boundary layers
Yu Cheng, Andrey Grachev, Chiel van Heerwaarden
The universal velocity log law first proposed by von Kármán in the near-wall region of turbulent shear flows is one of the cornerstones of turbulence theory. When buoyancy effects…
physics.flu-dyn2020
On the logarithmic profile of temperature in the atmospheric convective boundary layers
Yu Cheng, Qi Li, Pierre Gentine
Wall-bounded turbulent flows are widely observed in natural and engineering systems, such as air flows near the Earth's surface, water flows in rivers, and flows around a car or a…
physics.flu-dyn2019★ 11 cited
Deep learning for subgrid-scale turbulence modeling in large-eddy simulations of the atmospheric boundary layer
Yu Cheng, Marco Giometto, Pit Kauffmann +7
In large-eddy simulations, subgrid-scale (SGS) processes are parameterized as a function of filtered grid-scale variables. First-order, algebraic SGS models are based on the eddy-v…