Radiation Effects on Free Convection Flow past an Impulsively Started Infinite Vertical Plate with Ramped Wall Temperature and Constant Mass Diffusion

The interaction of free convection with thermal radiation of a viscous incompressible unsteady flow past an impulsively started infinite vertical plate in the presence of chemical species concentration and a temperature boundary condition which follows a ramp function up until some specified time...

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Main Author: Marneni, Narahari
Format: Citation Index Journal
Published: 2009
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Online Access:http://eprints.utp.edu.my/3532/
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spelling my.utp.eprints.35322013-12-16T23:48:39Z Radiation Effects on Free Convection Flow past an Impulsively Started Infinite Vertical Plate with Ramped Wall Temperature and Constant Mass Diffusion Marneni, Narahari QA Mathematics TJ Mechanical engineering and machinery The interaction of free convection with thermal radiation of a viscous incompressible unsteady flow past an impulsively started infinite vertical plate in the presence of chemical species concentration and a temperature boundary condition which follows a ramp function up until some specified time and then remains constant is analyzed. The fluid is assumed to be gray, emitting-absorbing but non-scattering medium and the optically thin radiation limit is considered. The dimensionless governing equations are solved using Laplace transform technique. The velocity and the temperature profiles are shown on graphs for different air flows. The variation of skin-friction is also shown in a table. The effects of different parameters like Radiation parameter (R), thermal Grashof number (Gr), Schmidt number (Sc), mass to thermal buoyancy ratio parameter (N) for the three cases N = 0 (the buoyancy force is due to thermal diffusion only), N > 0 (the mass buoyancy force acts in the same direction of thermal buoyancy force) and N < 0 (the mass buoyancy force acts in the opposite direction of thermal buoyancy force) and time (t) are discussed. The interaction of free convection with thermal radiation near a ramped temperature plate has also been compared with the flow near a plate with constant temperature. It is observed that the velocity increases with decreasing radiation parameter. 2009-10 Citation Index Journal PeerReviewed Marneni, Narahari (2009) Radiation Effects on Free Convection Flow past an Impulsively Started Infinite Vertical Plate with Ramped Wall Temperature and Constant Mass Diffusion. [Citation Index Journal] http://eprints.utp.edu.my/3532/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
topic QA Mathematics
TJ Mechanical engineering and machinery
spellingShingle QA Mathematics
TJ Mechanical engineering and machinery
Marneni, Narahari
Radiation Effects on Free Convection Flow past an Impulsively Started Infinite Vertical Plate with Ramped Wall Temperature and Constant Mass Diffusion
description The interaction of free convection with thermal radiation of a viscous incompressible unsteady flow past an impulsively started infinite vertical plate in the presence of chemical species concentration and a temperature boundary condition which follows a ramp function up until some specified time and then remains constant is analyzed. The fluid is assumed to be gray, emitting-absorbing but non-scattering medium and the optically thin radiation limit is considered. The dimensionless governing equations are solved using Laplace transform technique. The velocity and the temperature profiles are shown on graphs for different air flows. The variation of skin-friction is also shown in a table. The effects of different parameters like Radiation parameter (R), thermal Grashof number (Gr), Schmidt number (Sc), mass to thermal buoyancy ratio parameter (N) for the three cases N = 0 (the buoyancy force is due to thermal diffusion only), N > 0 (the mass buoyancy force acts in the same direction of thermal buoyancy force) and N < 0 (the mass buoyancy force acts in the opposite direction of thermal buoyancy force) and time (t) are discussed. The interaction of free convection with thermal radiation near a ramped temperature plate has also been compared with the flow near a plate with constant temperature. It is observed that the velocity increases with decreasing radiation parameter.
format Citation Index Journal
author Marneni, Narahari
author_facet Marneni, Narahari
author_sort Marneni, Narahari
title Radiation Effects on Free Convection Flow past an Impulsively Started Infinite Vertical Plate with Ramped Wall Temperature and Constant Mass Diffusion
title_short Radiation Effects on Free Convection Flow past an Impulsively Started Infinite Vertical Plate with Ramped Wall Temperature and Constant Mass Diffusion
title_full Radiation Effects on Free Convection Flow past an Impulsively Started Infinite Vertical Plate with Ramped Wall Temperature and Constant Mass Diffusion
title_fullStr Radiation Effects on Free Convection Flow past an Impulsively Started Infinite Vertical Plate with Ramped Wall Temperature and Constant Mass Diffusion
title_full_unstemmed Radiation Effects on Free Convection Flow past an Impulsively Started Infinite Vertical Plate with Ramped Wall Temperature and Constant Mass Diffusion
title_sort radiation effects on free convection flow past an impulsively started infinite vertical plate with ramped wall temperature and constant mass diffusion
publishDate 2009
url http://eprints.utp.edu.my/3532/
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score 13.18916