GRAETZ PROBLEM IN DUCTS OF CIRCULAR AND SOME NON-CIRCULAR CROSS-SECTIONS WITH VISCOELASTIC FLUIDS

Conference proceedings article

Authors/Editors

Research Areas

No matching items found.

Publication Details

Author list: Abdelkader F, Khezzar L, Siginer DA, Nemouchi Z

Publisher: AMER SOC MECHANICAL ENGINEERS

Place: NEW YORK

Publication year: 2012

Start page: 149

End page: 154

Number of pages: 6

ISBN: 978-0-7918-5492-1

Languages: English-Great Britain (EN-GB)

View in Web of Science | View citing articles in Web of Science

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.

Keywords

No matching items found.

Documents

No matching items found.