Validation of Turbulence Closures for the RANS Modelling of Under-expanded Fluid Releases
Woolley, RM, Fairweather, M, Wareing, CJ et al. (1 more author)
(2015)
Validation of Turbulence Closures for the RANS Modelling of Under-expanded Fluid Releases.
In:
AIP Conference Proceedings.
11th International Conference of Computational Methods in Sciences and Engineering (ICCMSE 2015), 20-23 Mar 2015, Athens, Greece.
American Institute of Physics (AIP)
.
Abstract
Presented are results from the application of a shock-capturing numerical scheme to the solution of the Favre-averaged Navier-Stokes fluid-flow equations, coupled with compressibility-corrected turbulence models. The relative performance of both a two-equation model and a Reynolds-stress transport model are evaluated in their application to the modelling of both moderately under-expanded, and highly under-expanded experimental releases. Both standard, and compressibility corrected models are investigated, and the superior predictive capabilities of the second-moment Reynolds-stress model are demonstrated.
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