Entropy generation analysis for radiative heat transfer to Bödewadt slip flow subject to strong wall suction

Meraj Mustafa, Ioan Pop, Kohilavani Naganthran, Roslinda Mohd. Nazar

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Similarity solutions are found for radiative heat transfer in Bödewadt slip flow past rough disk subjected to wall suction. The idea of non-linear thermal radiation for the Bödewadt boundary layer is just introduced here. An early study determined that a physically plausible solution of the energy equation fails to exist as long as the surface is impermeable. By using von-Kármán transformations, the relevant equations are changed into locally similar forms and then numerical solutions are constructed for broad range of embedded parameters. Our calculations show remarkable effects of fluid suction and slip coefficients on the solution profiles. Stability of the solutions is checked by computing lowest eigenvalues of the governing boundary value problem. Fluid temperature is highly sensitive to a parameter θw measuring the importance of wall temperature relative to ambient temperature. Interesting implications of this parameter on the underlying flow physics are clarified. Analysis of entropy generation for the Bödewadt's boundary layer is carried out in the existence of new physical mechanism, namely non-linear radiation in this research. The paper also aims to deduce the behaviors of slip coefficients and temperature ratio parameter on the heat transfer rate, which has definite role in many heat transfer applications.

Original languageEnglish
Pages (from-to)179-188
Number of pages10
JournalEuropean Journal of Mechanics, B/Fluids
Volume72
DOIs
Publication statusPublished - 1 Nov 2018

Fingerprint

Slip Flow
slip flow
Radiative Heat Transfer
radiative heat transfer
suction
Suction
Entropy
entropy
Slip
Heat Transfer
Boundary Layer
boundary layers
slip
heat transfer
Fluid
Thermal Radiation
temperature ratio
Similarity Solution
fluids
wall temperature

Keywords

  • Bödewadt flow
  • Entropy generation
  • Partial slip
  • Rotating flow
  • Thermal radiation

ASJC Scopus subject areas

  • Mathematical Physics
  • Physics and Astronomy(all)

Cite this

Entropy generation analysis for radiative heat transfer to Bödewadt slip flow subject to strong wall suction. / Mustafa, Meraj; Pop, Ioan; Naganthran, Kohilavani; Mohd. Nazar, Roslinda.

In: European Journal of Mechanics, B/Fluids, Vol. 72, 01.11.2018, p. 179-188.

Research output: Contribution to journalArticle

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