Stokes Flow past a Swarm of Porous Nanocylindrical Particles Enclosing a Solid Core

This paper concerns the Stokes flow of an incompressible viscous fluid past a swarm of porous nanocylindrical particles enclosing a solid cylindrical core with Kuwabara boundary condition. An aggregate of porous nanocylindrical particles is considered as a hydro-dynamically equivalent to a solid cyl...

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Main Authors: Satya Deo, Pramod Kumar Yadav
Format: Article
Language:English
Published: Wiley 2008-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Online Access:http://dx.doi.org/10.1155/2008/651910
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author Satya Deo
Pramod Kumar Yadav
author_facet Satya Deo
Pramod Kumar Yadav
author_sort Satya Deo
collection DOAJ
description This paper concerns the Stokes flow of an incompressible viscous fluid past a swarm of porous nanocylindrical particles enclosing a solid cylindrical core with Kuwabara boundary condition. An aggregate of porous nanocylindrical particles is considered as a hydro-dynamically equivalent to a solid cylindrical core with concentric porous cylindrical shell. The Brinkman equation inside the porous cylindrical shell and the Stokes equation outside the porous cylindrical shell in their stream function formulations are used. Explicit expressions for the stream functions in both regions have been investigated. The drag force acting at each nanoporous cylindrical particle in a cell is evaluated. Also, we solved the same problem by using Happel boundary condition on the hypothetical cell. In certain limiting cases, drag force converges to pre-existing analytical results, such as the drag on a porous circular cylinder and the drag on a solid cylinder in Kuwabara's cell or Happel's cell. Representative results are then discussed and compared for both cases and presented in graphical form by using Mathematica software.
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spelling doaj-art-e74d71bbf453485486aa3ebbacde662d2025-02-03T01:02:31ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04252008-01-01200810.1155/2008/651910651910Stokes Flow past a Swarm of Porous Nanocylindrical Particles Enclosing a Solid CoreSatya Deo0Pramod Kumar Yadav1Department of Mathematics, University of Allahabad, Allahabad 211002, IndiaDepartment of Mathematics, University of Allahabad, Allahabad 211002, IndiaThis paper concerns the Stokes flow of an incompressible viscous fluid past a swarm of porous nanocylindrical particles enclosing a solid cylindrical core with Kuwabara boundary condition. An aggregate of porous nanocylindrical particles is considered as a hydro-dynamically equivalent to a solid cylindrical core with concentric porous cylindrical shell. The Brinkman equation inside the porous cylindrical shell and the Stokes equation outside the porous cylindrical shell in their stream function formulations are used. Explicit expressions for the stream functions in both regions have been investigated. The drag force acting at each nanoporous cylindrical particle in a cell is evaluated. Also, we solved the same problem by using Happel boundary condition on the hypothetical cell. In certain limiting cases, drag force converges to pre-existing analytical results, such as the drag on a porous circular cylinder and the drag on a solid cylinder in Kuwabara's cell or Happel's cell. Representative results are then discussed and compared for both cases and presented in graphical form by using Mathematica software.http://dx.doi.org/10.1155/2008/651910
spellingShingle Satya Deo
Pramod Kumar Yadav
Stokes Flow past a Swarm of Porous Nanocylindrical Particles Enclosing a Solid Core
International Journal of Mathematics and Mathematical Sciences
title Stokes Flow past a Swarm of Porous Nanocylindrical Particles Enclosing a Solid Core
title_full Stokes Flow past a Swarm of Porous Nanocylindrical Particles Enclosing a Solid Core
title_fullStr Stokes Flow past a Swarm of Porous Nanocylindrical Particles Enclosing a Solid Core
title_full_unstemmed Stokes Flow past a Swarm of Porous Nanocylindrical Particles Enclosing a Solid Core
title_short Stokes Flow past a Swarm of Porous Nanocylindrical Particles Enclosing a Solid Core
title_sort stokes flow past a swarm of porous nanocylindrical particles enclosing a solid core
url http://dx.doi.org/10.1155/2008/651910
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