Investigation of the effects of number of nozzle intakes on the performance of vortex tube refrigerators base on CFD

چکیده مقاله

In this work, the effect of a performance parameter on energy separation and refrigeration of vortex tube is investigated numerically. The study was conducted on number of inlet nozzles. The three dimensional model is investigated at steady state condition then the RNG  turbulence model utilizes for determining the flow and temperature fields. The finite volume method base on Computational Fluid Dynamic (CFD) model is verified through comparison with experimental data and numerical results used in a straight vortex tube, reported work in the literature. The code was then utilized to study the effect of different number of inlet nozzles on the performance of the straight vortex tube. Numerical results indicate that energy separation can be improved by changing this performance parameter and more details are reported during this simulation with contour plots and solid arguments comprehensively. The actual values and numerical simulation results indicated that CFD model is capable of predicting the cooling and heating performance of Ranque – Hilsch vortex tube with different geometrical and physical features.

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