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
More filters
Journal ArticleDOI
Heat pump model for Ranque–Hilsch vortex tubes
TL;DR: In this paper, a quantitative model for heat separation in a fluid due to motion along a pressure gradient is described, and the physical model involved is relevant to one explanation for the temperature separation of a vortex tube.
Journal ArticleDOI
Investigation of the thermal separation in a counter-flow Ranque-Hilsch vortex tube with regard to different fin geometries located inside the cold-tube length
TL;DR: In this article, the influence of different fin shapes on critical performance parameters of cold temperature difference, hot temperature difference and isentropic efficiency and COP numerically were surveyed. And the results indicated that the parallelogram and rectangular fin had the highest and lowest cold temperature differences, isentropy efficiency and coprocessional efficiency, respectively.
Journal ArticleDOI
CFD Analysis of Energy Separation in Ranque-Hilsch Vortex Tube at Cryogenic Temperature
TL;DR: In this paper, a CFD model is used to simulate the energy separation phenomenon in vortex tube (VT) with gaseous air at cryogenic temperature as working fluid, and a parametric sensitivity analysis is carried out in order to optimize energy separation at low temperatures.
Journal ArticleDOI
Experimental study of the impacts of cold mass fraction on internal parameters of a vortex tube
TL;DR: In this article, a large-scale vortex tube was designed and an experimental device was built to get the internal parameters of a vortex tube, and a five-hole probe and thermocouples were used to obtain the three-dimensional velocities, the static pressure, static temperature and total temperature distributions inside the vortex tube.
Journal ArticleDOI
Determining of gas type in counter flow vortex tube using pairwise Fisher score attribute reduction method.
Kemal Polat,Volkan Kirmaci +1 more
TL;DR: In this article, four different gas types including air, oxygen, nitrogen, and argon in the vortex tube with different inlet pressures and nozzle numbers have been used to determine the gas type in the RHVT.
References
More filters
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.
Journal ArticleDOI
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.