Numerical investigation on flow behavior and energy separation in a micro-scale vortex tube

There are a few experimental and numerical studies on the behaviour of micro-scale vortex tubes. The intention of this work is to investigate the energy separation phenomenon in a micro-scale vortex tube by using the computational fluid dynamic. The flow is assumed as steady, turbulent,...

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Main Authors:	Rahbar Nader, Taherian Mohsen, Shateri Mostafa, Valipour Sadegh Mohammad
Format:	Article
Language:	English
Published:	VINCA Institute of Nuclear Sciences 2015-01-01
Series:	Thermal Science
Subjects:	Ranque-Hilsch tube Micro-Scale Vortex Tube CFD modeling Energy Separation Temperature separation shear-stress transport turbulence model
Online Access:	http://www.doiserbia.nb.rs/img/doi/0354-9836/2015/0354-98361200206R.pdf

id	doaj-c54d8205c9294d3db1c97dcb0cbe5046
record_format	Article
spelling	doaj-c54d8205c9294d3db1c97dcb0cbe50462021-01-02T08:35:41ZengVINCA Institute of Nuclear SciencesThermal Science0354-98362015-01-0119261963010.2298/TSCI120316206R0354-98361200206RNumerical investigation on flow behavior and energy separation in a micro-scale vortex tubeRahbar Nader0Taherian Mohsen1Shateri Mostafa2Valipour Sadegh Mohammad3Department of Mechanical Engineering, Semnan Branch, Islamic Azad University, Semnan, IranDepartment of Mechanical Engineering, Semnan Branch, Islamic Azad University, Semnan, IranDepartment of Mechanical Engineering, Semnan Branch, Islamic Azad University, Semnan, Iranb School of Mechanical Engineering, Semnan University, Semnan, IranThere are a few experimental and numerical studies on the behaviour of micro-scale vortex tubes. The intention of this work is to investigate the energy separation phenomenon in a micro-scale vortex tube by using the computational fluid dynamic. The flow is assumed as steady, turbulent, compressible ideal gas, and the shear-stress transport sst k-w is used for modeling of turbulence phenomenon. The results show that 3-D CFD simulation is more accurate than 2-D axisymmetric one. Moreover, optimum cold-mass ratios to maximize the refrigeration-power and isentropicefficiency are evaluated. The results of static temperature, velocity magnitude and pressure distributions show that the temperature-separation in the micro-scale vortex tube is a function of kinetic-energy variation and air-expansion in the radial direction.http://www.doiserbia.nb.rs/img/doi/0354-9836/2015/0354-98361200206R.pdfRanque-Hilsch tubeMicro-Scale Vortex TubeCFD modelingEnergy SeparationTemperature separationshear-stress transport turbulence model
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Rahbar Nader Taherian Mohsen Shateri Mostafa Valipour Sadegh Mohammad
spellingShingle	Rahbar Nader Taherian Mohsen Shateri Mostafa Valipour Sadegh Mohammad Numerical investigation on flow behavior and energy separation in a micro-scale vortex tube Thermal Science Ranque-Hilsch tube Micro-Scale Vortex Tube CFD modeling Energy Separation Temperature separation shear-stress transport turbulence model
author_facet	Rahbar Nader Taherian Mohsen Shateri Mostafa Valipour Sadegh Mohammad
author_sort	Rahbar Nader
title	Numerical investigation on flow behavior and energy separation in a micro-scale vortex tube
title_short	Numerical investigation on flow behavior and energy separation in a micro-scale vortex tube
title_full	Numerical investigation on flow behavior and energy separation in a micro-scale vortex tube
title_fullStr	Numerical investigation on flow behavior and energy separation in a micro-scale vortex tube
title_full_unstemmed	Numerical investigation on flow behavior and energy separation in a micro-scale vortex tube
title_sort	numerical investigation on flow behavior and energy separation in a micro-scale vortex tube
publisher	VINCA Institute of Nuclear Sciences
series	Thermal Science
issn	0354-9836
publishDate	2015-01-01
description	There are a few experimental and numerical studies on the behaviour of micro-scale vortex tubes. The intention of this work is to investigate the energy separation phenomenon in a micro-scale vortex tube by using the computational fluid dynamic. The flow is assumed as steady, turbulent, compressible ideal gas, and the shear-stress transport sst k-w is used for modeling of turbulence phenomenon. The results show that 3-D CFD simulation is more accurate than 2-D axisymmetric one. Moreover, optimum cold-mass ratios to maximize the refrigeration-power and isentropicefficiency are evaluated. The results of static temperature, velocity magnitude and pressure distributions show that the temperature-separation in the micro-scale vortex tube is a function of kinetic-energy variation and air-expansion in the radial direction.
topic	Ranque-Hilsch tube Micro-Scale Vortex Tube CFD modeling Energy Separation Temperature separation shear-stress transport turbulence model
url	http://www.doiserbia.nb.rs/img/doi/0354-9836/2015/0354-98361200206R.pdf
work_keys_str_mv	AT rahbarnader numericalinvestigationonflowbehaviorandenergyseparationinamicroscalevortextube AT taherianmohsen numericalinvestigationonflowbehaviorandenergyseparationinamicroscalevortextube AT shaterimostafa numericalinvestigationonflowbehaviorandenergyseparationinamicroscalevortextube AT valipoursadeghmohammad numericalinvestigationonflowbehaviorandenergyseparationinamicroscalevortextube
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Numerical investigation on flow behavior and energy separation in a micro-scale vortex tube

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