Computational study of the Time Relaxation Model with high order deconvolution operator

Belding, Jeffrey; Neda, Monika; Pahlevani, Fran

doi:10.1016/j.rinam.2020.100111

Cited by 2 publications

(1 citation statement)

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“…The article [6] presents a numerical study of the time relaxation regularization (TRM) of the Navier-Stokes equations. The shear layer folding test was used to benchmark the TRM for different orders of the deconvolution operator, as well as the sensitivity of the shear layer computations with respect to changes in the temporal relaxation parameter.…”

Section: Introductionmentioning

confidence: 99%

Double shear layer evolution on the non-uniform computational mesh

Kulikov¹,

Son²

2021

Phys. Scr.

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This paper considers the problem of a thin shear layer evolution at Reynolds number rmRe = 400000 using the novel Compact Accurately Boundary Adjusting high-Resolution Technique (CABARET). The study is focused on the effect of the specific mesh refinement in the high shear rate areas on the flow properties under the influence of the developing instability. The original sequence of computational meshes (2562, 5122, 10242, 20482 cells) is modified using an iterative refinement algorithm based on the hyperbolic tangent. The properties of the solutions obtained are discussed in terms of the initial momentum thickness and the initial vorticity thickness, viscous and dilatational dissipation rates and also integral enstrophy. The growth rate for the most unstable mode depending on the mesh resolution is considered. In conclusion the accuracy of calculated mesh functions is estimated via L 1, L 2, L ∞ norms.

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Section: Introductionmentioning

confidence: 99%