Computation of recirculating swirling flow with the GLM Reynolds stress closure |
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Authors: | Fu Song S. B. Pope |
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Affiliation: | (1) Department of Engineering Mechanics, Tsinghua University, 100084 Beijing, China;(2) Sibley School of Mechanical and Aerospace Engineering, Cornell University, 14853 Ithaca, NY, USA |
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Abstract: | A Reynolds stress closure based on the generalized Langevin model (GLM), developed by Haworth and Pope[3,4], is applied to the flow calculation with swirl-induced recirculation. The purpose of the work is to assess the performance of this model under the complex flow conditions caused by the presence of strong swirl which gives rise to both unconventional recirculation in the vicinity of the symmetry axis and strong anisotropy in the turbulence field. Comparison of the computational results are made both with the experimental data of Roback and Johnson[11] and the computational results obtained with the typical isotropization of production model (IPM) and thek-ε type Boussinesq viscosity model. |
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Keywords: | swirling flow turbulence modelling Reynolds stresses generalized Langevin model probability-density function |
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