Energy Separation Mechanism in Unconfined Laminar Compressible Vortex

A theoretical investigation from the view point of gas-dynamics and thermodynamics was carried out, in order to clarify the energy separation mechanism in an unconfined laminar compressible vortex, as a primary flow element of a vortex tube. The mathematical solutions of density and temperature in a...

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Main Authors:	Katanoda, Hiroshi, Mohd Hazwan, Yusof, Morita, Hiromitsu
Format:	Article
Language:	English
Published:	ELSEVIER 2015
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/11718/ http://umpir.ump.edu.my/id/eprint/11718/ http://umpir.ump.edu.my/id/eprint/11718/ http://umpir.ump.edu.my/id/eprint/11718/1/Energy%20Separation%20Mechanism%20in%20Unconfined%20Laminar%20Compressible%20Vortex.pdf

id	ump-11718
recordtype	eprints
spelling	ump-117182018-01-19T00:55:19Z http://umpir.ump.edu.my/id/eprint/11718/ Energy Separation Mechanism in Unconfined Laminar Compressible Vortex Katanoda, Hiroshi Mohd Hazwan, Yusof Morita, Hiromitsu TJ Mechanical engineering and machinery A theoretical investigation from the view point of gas-dynamics and thermodynamics was carried out, in order to clarify the energy separation mechanism in an unconfined laminar compressible vortex, as a primary flow element of a vortex tube. The mathematical solutions of density and temperature in a viscous compressible vortical flow, with tangential velocity, were examined using an evaluation equation of total temperature. It is found from the results that a hotter gas in the peripheral region of the vortex is mainly generated by heat caused by viscous dissipation. A colder gas in the vortex center is mainly generated by viscous shear work done by the fluid element onto the surface of the surrounding gas. In addition, it is also found that the larger the representative Mach number of a vortex is, the lower the total temperature at the center of the vortex is, and at the same time, the higher the maximum total temperature in the peripheral region is. The increase in specific heat ratio of the working gas has the same effect, as increasing the representative Mach number of the vortex, on the total temperature in the vortex. ELSEVIER 2015-07-06 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/11718/1/Energy%20Separation%20Mechanism%20in%20Unconfined%20Laminar%20Compressible%20Vortex.pdf Katanoda, Hiroshi and Mohd Hazwan, Yusof and Morita, Hiromitsu (2015) Energy Separation Mechanism in Unconfined Laminar Compressible Vortex. International Journal of Refrigeration, 59. pp. 115-123. ISSN 0140-7007 http://dx.doi.org/10.1016/j.ijrefrig.2015.07.008 DOI: 10.1016/j.ijrefrig.2015.07.008
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Katanoda, Hiroshi Mohd Hazwan, Yusof Morita, Hiromitsu Energy Separation Mechanism in Unconfined Laminar Compressible Vortex
description	A theoretical investigation from the view point of gas-dynamics and thermodynamics was carried out, in order to clarify the energy separation mechanism in an unconfined laminar compressible vortex, as a primary flow element of a vortex tube. The mathematical solutions of density and temperature in a viscous compressible vortical flow, with tangential velocity, were examined using an evaluation equation of total temperature. It is found from the results that a hotter gas in the peripheral region of the vortex is mainly generated by heat caused by viscous dissipation. A colder gas in the vortex center is mainly generated by viscous shear work done by the fluid element onto the surface of the surrounding gas. In addition, it is also found that the larger the representative Mach number of a vortex is, the lower the total temperature at the center of the vortex is, and at the same time, the higher the maximum total temperature in the peripheral region is. The increase in specific heat ratio of the working gas has the same effect, as increasing the representative Mach number of the vortex, on the total temperature in the vortex.
format	Article
author	Katanoda, Hiroshi Mohd Hazwan, Yusof Morita, Hiromitsu
author_facet	Katanoda, Hiroshi Mohd Hazwan, Yusof Morita, Hiromitsu
author_sort	Katanoda, Hiroshi
title	Energy Separation Mechanism in Unconfined Laminar Compressible Vortex
title_short	Energy Separation Mechanism in Unconfined Laminar Compressible Vortex
title_full	Energy Separation Mechanism in Unconfined Laminar Compressible Vortex
title_fullStr	Energy Separation Mechanism in Unconfined Laminar Compressible Vortex
title_full_unstemmed	Energy Separation Mechanism in Unconfined Laminar Compressible Vortex
title_sort	energy separation mechanism in unconfined laminar compressible vortex
publisher	ELSEVIER
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/11718/ http://umpir.ump.edu.my/id/eprint/11718/ http://umpir.ump.edu.my/id/eprint/11718/ http://umpir.ump.edu.my/id/eprint/11718/1/Energy%20Separation%20Mechanism%20in%20Unconfined%20Laminar%20Compressible%20Vortex.pdf
first_indexed	2023-09-18T22:12:40Z
last_indexed	2023-09-18T22:12:40Z
_version_	1777415131159855104

Energy Separation Mechanism in Unconfined Laminar Compressible Vortex

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