Large Eddy Simulation of Turbulent Channel Flow at Reτ = 590

  • Mallik M
  • Uddin M
  • et al.
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Abstract

In order to be of use in engineering situations, LES models must be able to reproduce near-wall ?ows. We approach this by refining the mesh close to the wall in a manner that reflects the anisotropic nature of near- wall turbulence. This requires the SGS modelling to be able to deal with anisotropic meshes as well as the anisotropic turbulence near the walls. The technique is then applied to fully-developed turbulent ?ow in a channel. We show that the ?rst and second order sta- tistical moments of the resolvable velocity are well re- produced, with the differential stress model of Dear- dorff performing particularly well.

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Mallik, M. S. I., Uddin, M. A., & Meah, M. A. (2014). Large Eddy Simulation of Turbulent Channel Flow at Reτ = 590. IOSR Journal of Mathematics, 10(6), 41–50. https://doi.org/10.9790/5728-10644150

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