Mixed convection flow over a horizontal circular cylinder with a constant surface heat flux in a nanofluid

Leony Tham, Roslinda Mohd. Nazar, Ioan Pop

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The laminar mixed convection boundary layer flow from a horizontal circular cylinder in a nanofluid, which is maintained at a constant surface heat flux, has been studied for both cases of a heated and cooled cylinder. The resulting system of nonlinear partial differential equations is solved numerically using an implicit finite-difference scheme. Three different types of nanoparticles are considered, namely Cu, Al2O3 and TiO2. The solutions for the flow and heat transfer characteristics are evaluated numerically and studied for various values of the governing parameters, namely the nanoparticle volume fraction φ and the mixed convection parameter λ. It is worth mentioning that heating the cylinder ( λ >0) delays the separation of the boundary layer and if the cylinder is hot enough (large values of λ >0), then it is suppressed completely. On the other hand, cooling the cylinder ( λ < 0) brings the boundary layer separation point nearer to the lower stagnation point and for a sufficiently cold cylinder (large values of λ < 0), the flow completely detaches from the cylinder.

Original languageEnglish
Title of host publicationProceedings of CHT-12. ICHMT International Symposium on Advances in Computational Heat Transfer, 2012
PublisherBegell House Inc.
Pages949-969
Number of pages21
ISBN (Print)9781567003031
DOIs
Publication statusPublished - 1 Jan 2012
EventInternational Symposium on Advances in Computational Heat Transfer, CHT 2012 - Bath, United Kingdom
Duration: 1 Jul 20126 Jul 2012

Publication series

NameInternational Symposium on Advances in Computational Heat Transfer
ISSN (Print)2578-5486

Conference

ConferenceInternational Symposium on Advances in Computational Heat Transfer, CHT 2012
CountryUnited Kingdom
CityBath
Period1/7/126/7/12

Fingerprint

Mixed convection
circular cylinders
Circular cylinders
Heat flux
heat flux
Boundary layers
convection
Nanoparticles
Boundary layer flow
Partial differential equations
Volume fraction
Heat transfer
Cooling
Heating
boundary layer separation
nanoparticles
boundary layer flow
stagnation point
partial differential equations
boundary layers

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Mechanical Engineering
  • Condensed Matter Physics
  • Computer Science Applications

Cite this

Tham, L., Mohd. Nazar, R., & Pop, I. (2012). Mixed convection flow over a horizontal circular cylinder with a constant surface heat flux in a nanofluid. In Proceedings of CHT-12. ICHMT International Symposium on Advances in Computational Heat Transfer, 2012 (pp. 949-969). (International Symposium on Advances in Computational Heat Transfer). Begell House Inc.. https://doi.org/10.1615/ICHMT.2012.CHT-12.580

Mixed convection flow over a horizontal circular cylinder with a constant surface heat flux in a nanofluid. / Tham, Leony; Mohd. Nazar, Roslinda; Pop, Ioan.

Proceedings of CHT-12. ICHMT International Symposium on Advances in Computational Heat Transfer, 2012. Begell House Inc., 2012. p. 949-969 (International Symposium on Advances in Computational Heat Transfer).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tham, L, Mohd. Nazar, R & Pop, I 2012, Mixed convection flow over a horizontal circular cylinder with a constant surface heat flux in a nanofluid. in Proceedings of CHT-12. ICHMT International Symposium on Advances in Computational Heat Transfer, 2012. International Symposium on Advances in Computational Heat Transfer, Begell House Inc., pp. 949-969, International Symposium on Advances in Computational Heat Transfer, CHT 2012, Bath, United Kingdom, 1/7/12. https://doi.org/10.1615/ICHMT.2012.CHT-12.580
Tham L, Mohd. Nazar R, Pop I. Mixed convection flow over a horizontal circular cylinder with a constant surface heat flux in a nanofluid. In Proceedings of CHT-12. ICHMT International Symposium on Advances in Computational Heat Transfer, 2012. Begell House Inc. 2012. p. 949-969. (International Symposium on Advances in Computational Heat Transfer). https://doi.org/10.1615/ICHMT.2012.CHT-12.580
Tham, Leony ; Mohd. Nazar, Roslinda ; Pop, Ioan. / Mixed convection flow over a horizontal circular cylinder with a constant surface heat flux in a nanofluid. Proceedings of CHT-12. ICHMT International Symposium on Advances in Computational Heat Transfer, 2012. Begell House Inc., 2012. pp. 949-969 (International Symposium on Advances in Computational Heat Transfer).
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