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Dynamic Evaluation of Mesh Resolution and Its Application in Hybrid LES/RANS Methods

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Academic year: 2021

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Fig. 1 Definition of length scales in each coordinate direction for (a) quadrilateral cells and (b) triangular cells
Table 1 Computational mesh and resolution in wall units for plane channel flow of Re τ = 4000 mesh N x N y N z x + z +baseline70140130400100 0.5x (A) 140 140 130 200 100 0.5z (B) 70 140 260 400 50 0.25x (C) 280 140 130 100 100 0.25z (D) 70 140 520 400 25 0
Fig. 2 Two-point correlations for plane channel flow at Re τ = 4000. Top: streamwise correlations ρ uu (x) at the two wall-normal locations y 0 = 0.055 (plot a) and y 0 = 0.44 (plot b)
Table 2 Streamwise (x) resolution as indicated by the number of cells used to resolve the eddy structures in x direction.
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