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Axisymmetric stagnation-point flow and heat transfer of a viscous, compressible fluid on a cylinder with constant heat flux

Author:
حمید محمدیون
,
اصغر برادران رحیمی
,
علی کیانی فر
,
hamid mohammadiun
,
Asgar Bradaran Rahimi
,
Ali Kianifar
Year
: 2013
Abstract: Existing solutions of the problem of axi-symmetric stagnation-point flow and heat transfer on either a cylinder or flat plate are for incompressible fluid. Here fluid with temperature dependent density is considered in the problem of axi-symmetric stagnation-point flow and heat transfer on a cylinder with constant heat flux. The impinging free stream is steady and with a constant strain - rate . An exact solution of the Navier-Stokes equations and energy equation is derived in this problem. A reduction of these equations is obtained by use of appropriate transformations introducing for the first time. The general self-similar solution is obtained when the wall heat flux of the cylinder is constant. All the solutions above are presented for Reynolds numbers, , ranging from 0.01 to 1000, selected values of compressibility factors, and different values of Prandtl numbers where is cylinder radius and is kinematic viscosity of the fluid. For all Reynolds numbers and surface heat flux, as compressibility factor increases both components of velocity field, heat transfer coefficient, and shear-stresses increase and pressure function decreases.
URI: http://libsearch.um.ac.ir:80/fum/handle/fum/3346009
Keyword(s): Stagnation Flow,Viscous Compressible Fluid,Heat Transfer,Stationary cylinder,Constant wall heat flux,Exact Solution
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    Axisymmetric stagnation-point flow and heat transfer of a viscous, compressible fluid on a cylinder with constant heat flux

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contributor authorحمید محمدیونen
contributor authorاصغر برادران رحیمیen
contributor authorعلی کیانی فرen
contributor authorhamid mohammadiunfa
contributor authorAsgar Bradaran Rahimifa
contributor authorAli Kianifarfa
date accessioned2020-06-06T13:12:39Z
date available2020-06-06T13:12:39Z
date issued2013
identifier urihttp://libsearch.um.ac.ir:80/fum/handle/fum/3346009?locale-attribute=en
description abstractExisting solutions of the problem of axi-symmetric stagnation-point flow and heat transfer on either a cylinder or flat plate are for incompressible fluid. Here fluid with temperature dependent density is considered in the problem of axi-symmetric stagnation-point flow and heat transfer on a cylinder with constant heat flux. The impinging free stream is steady and with a constant strain - rate . An exact solution of the Navier-Stokes equations and energy equation is derived in this problem. A reduction of these equations is obtained by use of appropriate transformations introducing for the first time. The general self-similar solution is obtained when the wall heat flux of the cylinder is constant. All the solutions above are presented for Reynolds numbers, , ranging from 0.01 to 1000, selected values of compressibility factors, and different values of Prandtl numbers where is cylinder radius and is kinematic viscosity of the fluid. For all Reynolds numbers and surface heat flux, as compressibility factor increases both components of velocity field, heat transfer coefficient, and shear-stresses increase and pressure function decreases.en
languageEnglish
titleAxisymmetric stagnation-point flow and heat transfer of a viscous, compressible fluid on a cylinder with constant heat fluxen
typeJournal Paper
contenttypeExternal Fulltext
subject keywordsStagnation Flowen
subject keywordsViscous Compressible Fluiden
subject keywordsHeat Transferen
subject keywordsStationary cylinderen
subject keywordsConstant wall heat fluxen
subject keywordsExact Solutionen
journal titleScientia Iranicaen
journal titleScientia Iranicafa
pages185-194
journal volume20
journal issue1
identifier linkhttps://profdoc.um.ac.ir/paper-abstract-1034331.html
identifier articleid1034331
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