Two-dimensional flow properties of micronozzle under varied isothermal wall conditions

A new technology, which uses thermoelectric elements as side-walls of microthrusters for heating and cooling purpose, is emerging. This technique can improve the performance of low-Reynolds-number microthrusters as a result of increasing the flow momentum forces or decreasing the viscous forces. In...

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Main Authors:	Hameed, Amar Hasan, Kafafy, Raed, Asrar, Waqar, Idres, Moumen
Format:	Article
Language:	English
Published:	Inderscience Publishers 2013
Subjects:	TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics
Online Access:	http://irep.iium.edu.my/34991/ http://irep.iium.edu.my/34991/ http://irep.iium.edu.my/34991/ http://irep.iium.edu.my/34991/1/IJESMS050402_HAMEED.pdf

id	iium-34991
recordtype	eprints
spelling	iium-349912014-01-30T01:17:43Z http://irep.iium.edu.my/34991/ Two-dimensional flow properties of micronozzle under varied isothermal wall conditions Hameed, Amar Hasan Kafafy, Raed Asrar, Waqar Idres, Moumen TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics A new technology, which uses thermoelectric elements as side-walls of microthrusters for heating and cooling purpose, is emerging. This technique can improve the performance of low-Reynolds-number microthrusters as a result of increasing the flow momentum forces or decreasing the viscous forces. In the present paper, we focus on the effect of using heated or cooled walls to control the properties of the flow through a micronozzle. Viscous compressible laminar flow is solved in the micronozzle. Different isothermal divergent-wall temperatures are tested to study the impact of wall temperature on the fundamental properties of momentum forces. The temperature difference between the wall and the gas effects the static temperature and static pressure profile, Mach number is increased, density near the wall is increased due to cooling. Alleviation of viscous losses by cooling the supersonic flow in the expander is demonstrated by the reduction of the thickness of the subsonic boundary layer Inderscience Publishers 2013 Article PeerReviewed application/pdf en http://irep.iium.edu.my/34991/1/IJESMS050402_HAMEED.pdf Hameed, Amar Hasan and Kafafy, Raed and Asrar, Waqar and Idres, Moumen (2013) Two-dimensional flow properties of micronozzle under varied isothermal wall conditions. International Journal of Engineering Systems Modelling and Simulation, 5 (4). pp. 174-180. ISSN 1755-9766 http://www.inderscience.com/jhome.php?jcode=ijesms 10.1504/IJESMS.2013.056692
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics
spellingShingle	TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics Hameed, Amar Hasan Kafafy, Raed Asrar, Waqar Idres, Moumen Two-dimensional flow properties of micronozzle under varied isothermal wall conditions
description	A new technology, which uses thermoelectric elements as side-walls of microthrusters for heating and cooling purpose, is emerging. This technique can improve the performance of low-Reynolds-number microthrusters as a result of increasing the flow momentum forces or decreasing the viscous forces. In the present paper, we focus on the effect of using heated or cooled walls to control the properties of the flow through a micronozzle. Viscous compressible laminar flow is solved in the micronozzle. Different isothermal divergent-wall temperatures are tested to study the impact of wall temperature on the fundamental properties of momentum forces. The temperature difference between the wall and the gas effects the static temperature and static pressure profile, Mach number is increased, density near the wall is increased due to cooling. Alleviation of viscous losses by cooling the supersonic flow in the expander is demonstrated by the reduction of the thickness of the subsonic boundary layer
format	Article
author	Hameed, Amar Hasan Kafafy, Raed Asrar, Waqar Idres, Moumen
author_facet	Hameed, Amar Hasan Kafafy, Raed Asrar, Waqar Idres, Moumen
author_sort	Hameed, Amar Hasan
title	Two-dimensional flow properties of micronozzle under varied isothermal wall conditions
title_short	Two-dimensional flow properties of micronozzle under varied isothermal wall conditions
title_full	Two-dimensional flow properties of micronozzle under varied isothermal wall conditions
title_fullStr	Two-dimensional flow properties of micronozzle under varied isothermal wall conditions
title_full_unstemmed	Two-dimensional flow properties of micronozzle under varied isothermal wall conditions
title_sort	two-dimensional flow properties of micronozzle under varied isothermal wall conditions
publisher	Inderscience Publishers
publishDate	2013
url	http://irep.iium.edu.my/34991/ http://irep.iium.edu.my/34991/ http://irep.iium.edu.my/34991/ http://irep.iium.edu.my/34991/1/IJESMS050402_HAMEED.pdf
first_indexed	2023-09-18T20:50:18Z
last_indexed	2023-09-18T20:50:18Z
_version_	1777409948986114048

Two-dimensional flow properties of micronozzle under varied isothermal wall conditions

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