An efficient Two-Layer wall model for accurate numerical simulations of aeronautical applications
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hdl:2117/174503
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Data publicació2019
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Abstract
Two-Layer wall models have been widely studied since they allow wall modeled Large Eddy Simulationsof general non-equilibrium flows. However, they are plagued by two persistent problems, the "log-layermismatch" and the resolved Reynolds stresses inflow. Several methodologies have been proposed so far todeal with these problems separately. In this work, a time-filtering methodology is used to tackle both issuesat once with a single and low-computational-cost step, easily applicable to complex three-dimensionalgeometries. Additionally, it is shown that the techniques intended to suppress the Reynolds stresses inflowproposed so far, were not sufficient to completely mitigate their detrimental effects.
CitacióCalafell, J.; Trias, F. X.; Oliva, A. An efficient Two-Layer wall model for accurate numerical simulations of aeronautical applications. A: European Conference for Aeronautics and Space Sciences. "8th European Conference for Aeronautics and Space Science (EUCASS): papers". 2019, p. 1-11.
Versió de l'editorhttps://www.eucass.eu/doi/EUCASS2019-0694.pdf
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EUCASS2019-0694.pdf | 1,167Mb | Visualitza/Obre |