Unified wall-resolved and wall-modeled method for large-eddy simulations of compressible wall-bounded flows
| Autor: | Michele Cogo, Francesco De Vanna, Francesco Picano, Matteo Bernardini, Ernesto Benini |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Fluid Flow and Transfer Processes
Physics Work (thermodynamics) Field (physics) Computational Mechanics Mechanics Thermal diffusivity boundary layers Isothermal process Physics::Fluid Dynamics Turbulent viscosity large-eddy simulation turbulence modeling compressible flows Modeling and Simulation Bounded function Compressibility Adiabatic process |
| Popis: | Wall-resolved large eddy simulations and wall-modeled large eddy simulations are still separate strategies in the field of wall-turbulence applications, and no significant attempts have been documented to blend them in order to exploit the full potential of the two methods. This work enables a smooth transition between these two techniques, designing a robust algorithm that dynamically adapts the wall treatment. In particular, we propose a unified method that employs augmented turbulent viscosity and diffusivity at the wall location and allows for preservation of both the no-slip and isothermal/adiabatic conditions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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