Numerical investigation of a double-circuit Ranque–Hilsch vortex tube

摘要: Abstract The present paper reports a numerical investigation of double-circuit Ranque–Hilsch vortex tube. Different turbulence models, namely k – e , RNG, SAS-SST, RSM-LRR and LES, have been tested, in order to understand which is the most suitable for considered problem. analysis conducted on full three-dimensional model results show that LES provides best accuracy temperature separation prediction, standard RNG worst accuracy, whereas SAS-SST models take an intermediate position. On contrary, expensive terms computational time resources. obtained with highlight very high radial velocity values, result enhancement turbulent heat mass transfer, implies more accurate prediction effect. study concludes simulation tube, but at same are good compromise between efficiency accuracy.