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
Effect of Conical Valve Angle on Cold-Exit Temperature of Vortex Tube
TL;DR: In this paper, the effect of the conical valve angle variation has been analyzed in the range of 20 to 80 degrees and the best candidate for optimal cone angle is θ=63 degrees, which creates a cold temperature difference equal to 27.98 and 27.45 degrees, respectively.
Journal ArticleDOI
Experimental study and 3D CFD analysis on the optimization of throttle angle for a convergent vortex tube
TL;DR: In this article, seven adjustments of convergent-type Vortex Tube (VT) with different throttle angles were applied to analyze the influences of such angles on cold and hot temperature drops as well as flow structures inside the VTs.
Journal ArticleDOI
Analysis of the local entropy generation in a double-circuit vortex tube
TL;DR: In this paper, a double-circuit vortex tube thermodynamics was investigated with the aim of investigating the irreversible energy losses due to turbulent dissipation due to high local values of the mean rate of strain tensor modulus.
Journal ArticleDOI
Nature of counterflow and circulation in vortex separators
TL;DR: In this article, a new solution to the Navier-Stokes equations is obtained which describes a flow pattern consisting of two through-flows and the global meridional circulation.
Journal ArticleDOI
Numerical analysis of flow and thermal patterns in a double-pipe Ranque-Hilsch vortex tube: Influence of cooling a hot-tube
TL;DR: In this article, the effect of cooling a hot-tube on flow and thermal patterns (temperature separation) using a three-dimensional steady state model of turbulent swirling air flow inside vortex tube 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.