Role of entropy generation on thermal management during natural convection in a tilted square cavity with isothermal and non-isothermal hot walls

Abhishek Kumar Singh, S. Roy, Tanmay Basak, E. Momoniat

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

Entropy generation during natural convection within tilted square cavity inclined with different angles (φ = 30°and 75 °) for various thermal boundary conditions (case 1: isothermal heating and case 2: non-isothermal heating) has been studied. Simulations are carried out over a range of parameters: Rayleigh number (103 ≤ Ra ≤ 105) and Prandtl numbers (Pr = 0.025 and 998.24). The numerical results are presented in terms of isotherms (θ), streamlines (ψ), entropy generation due to heat transfer (S θ) and fluid friction (S ψ). Heating strategy is energy efficient for case 2 (non-isothermal heating) due to its less total entropy generation with reasonable heat transfer rate, irrespective of Pr.

Original languageEnglish
Pages (from-to)1243-1267
Number of pages25
JournalNumerical Heat Transfer; Part A: Applications
Volume66
Issue number11
DOIs
Publication statusPublished - 1 Dec 2014
Externally publishedYes

ASJC Scopus subject areas

  • Numerical Analysis
  • Condensed Matter Physics

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