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MHD stagnation point flow accounting variable thickness and slip conditions

  • M. Waleed Ahmed Khan
  • , M. Waqas
  • , M. Ijaz Khan
  • , A. Alsaedi
  • , T. Hayat
  • Quaid-I-Azam University
  • Faculty of Sciences, King Abdulaziz University

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

This communication addresses the second-order velocity and thermal slip features in magnetohydrodynamic (MHD) stagnation point flow past a stretching sheet with variable thickness. Energy expression in presence of dissipation and thermal radiation are examined. A comparative study with first-order velocity and thermal slip condition is analyzed. Analytical solutions of the resulting systems are obtained by homotopy analysis method. Plots for important variables in the flow quantities are made and discussed. It is observed that velocity of fluid increases for higher estimation of velocity power index while it decreases for wall thickness parameter. Surface drag force and heat transfer rate are decreased for larger wall thickness and Prandtl number. Present computations are consistent with those of existing studies in limiting sense.

Original languageEnglish
Pages (from-to)1201-1209
Number of pages9
JournalColloid and Polymer Science
Volume295
Issue number7
DOIs
StatePublished - 1 Jul 2017
Externally publishedYes

Keywords

  • Newtonian fluid
  • Second order velocity and thermal slip conditions
  • Variable sheet thickness
  • Viscous dissipation

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