Graetz problem in ducts of circular and some non-circular cross-sections with viscoelastic fluids

Filali Abdelkader, Lyes Khezzar, Dennis A. Siginer, Zoubir Nemouchi

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

Abstract

An investigation of heat transfer with viscoelastic fluids in straight pipes of circular and some non-circular cross-sections is carried out. The influence of the rheological parameters on heat transfer enhancement with viscoelastic fluids in the entrance region of tube flow is investigated with negligible axial heat conduction and viscous dissipation. Numerical simulations are conducted with constant wall heat flux for the Graetz problem using the finite element based software Polyflow for viscoelastic fluids of the simplified Phan-Thien Tanner (SPPT) type. It is found that increasing the fluid elasticity, for all cross-sections, raises the normalized heat transfer coefficient for relatively low elasticity values but for high level of fluid elasticity the normalized heat transfer coefficient decreases.

Original languageEnglish
Title of host publicationASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011
Pages149-154
Number of pages6
Volume6
EditionPARTS A AND B
Publication statusPublished - Dec 1 2011
EventASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011 - Denver, CO, United States
Duration: Nov 11 2011Nov 17 2011

Other

OtherASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011
CountryUnited States
CityDenver, CO
Period11/11/1111/17/11

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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  • Cite this

    Abdelkader, F., Khezzar, L., Siginer, D. A., & Nemouchi, Z. (2011). Graetz problem in ducts of circular and some non-circular cross-sections with viscoelastic fluids. In ASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011 (PARTS A AND B ed., Vol. 6, pp. 149-154)