Journal ArticleDOI
Numerical simulation of turbulent flow in a Ranque–Hilsch vortex tube
TLDR
In this article, numerical simulations of the internal flow in a commercial model of a Ranque-Hilsch vortex tube (RHVT) operating in jet impingement were performed by both RANS and LES techniques.About:
This article is published in International Journal of Heat and Mass Transfer.The article was published on 2009-11-01. It has received 112 citations till now. The article focuses on the topics: Vortex tube & Reynolds-averaged Navier–Stokes equations.read more
Citations
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Journal ArticleDOI
Vortex breakdown in a truncated conical bioreactor
TL;DR: In this article, a numerical model was proposed to explain the formation and disappearance of eddies in a slow steady axisymmetric air-water flow in a vertical truncated conical container, driven by the rotating top disk.
Journal ArticleDOI
Vortex Tube Air Cooling: The Effect on Surface Roughness and Power Consumption in Dry Turning
Taha Zahari,Abdul Salaam Hadi,Tuan Ya Tuan Mohammad Yusoff,Phoon S. Y.,Tan C. F.,Akiah M. A. +5 more
TL;DR: In this article, the effect of Ranque-Hilsch vortex cooling tube on power consumption and surface roughness quality in turning process when machining mild steel material with coated carbide cutting tool was studied.
Journal ArticleDOI
Numerical comparisons of the thermal behaviour of air and refrigerants in the vortex tube
Zheng Wang,K.O. Suen +1 more
TL;DR: In this paper, the authors compared the thermal behavior of air and two refrigerants (R134a and R600) under a range of operating conditions and found that they share similar trends with air: a higher VT inlet pressure leads to an increase in cooling effect that would reach a peak value when the chamber inlet/nozzle outlet velocity gets chocked.
Journal ArticleDOI
Evaluating velocity and temperature fields for Ranque–Hilsch vortex tube using numerical simulation
TL;DR: In this article, a three-dimensional numerical investigation is carried out to study the flow field inside a Ranque-Hilsch vortex tube (RHVT) model, where flow parameters such as velocity, temperature, and pressure are plotted at various locations inside the tube.
Journal ArticleDOI
Numerical investigation on cooling performance of ranque-hilsch vortex tube
Hassan Pouraria,Warn-Gyu Park +1 more
TL;DR: In this paper, four different two equation turbulence models were compared to identify the appropriate turbulence model for studying the energy separation effect in a Ranque-Hilsch vortex tube, and the feasibility of improving the cooling performance of vortex tube using the cooling system was investigated.
References
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Journal ArticleDOI
Toward the large-eddy simulation of compressible turbulent flows
TL;DR: In this paper, a compressible generalization of the linear combination of the Smagorinsky model and scale-similarity model, in terms of Favre-filtered fields, is obtained for the subgrid-scale stress tensor.
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On nonlinear K-l and K-ε models of turbulence
TL;DR: In this paper, a nonlinear K-l and K-e model is proposed to predict the normal Reynolds stresses in turbulent channel flow much more accurately than the linear model, and the nonlinear model is shown to be capable of predicting turbulent secondary flows in non-circular ducts.