Heat transfer in steady viscoelastic flow in pipes of complex shapes

Mario F. Letelier, Alejandro Mardoñez, Dennis A. Siginer

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

Abstract

An analysis of heat transfer in pipe-flow is presented for the cases in which viscoelastic properties of the fluid induce secondary flows in no-circular tubes, thus enhancing the tranversal transport capacity of the flow. It is used the Phan-Thien-Tanner (PTT) viscoelastic model, and the flow is assumed steady and laminar. The velocity field is first determined through a technique previously developed by the authors, and the energy equation is solved afterward for the temperature field for conditions of constant wall temperature and constant longitudinal temperature gradient. Perturbation analysis is applied around the relaxation time as parameter, where from all orders of velocity and temperature are analytically found up to third order. Plots of results for triangular and square tubes are presented, followed by a discussion of the relevant findings related to interactions among the main variables generated by viscoelastic fluid behaviour.

Original languageEnglish
Title of host publicationFluids Engineering
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages283-289
Number of pages7
ISBN (Print)0791836576, 9780791836576
DOIs
Publication statusPublished - 2002

Fingerprint

Steady flow
Pipe
Heat transfer
Fluids
Secondary flow
Pipe flow
Relaxation time
Thermal gradients
Temperature distribution
Temperature

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

Letelier, M. F., Mardoñez, A., & Siginer, D. A. (2002). Heat transfer in steady viscoelastic flow in pipes of complex shapes. In Fluids Engineering (pp. 283-289). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2002-32232
Letelier, Mario F. ; Mardoñez, Alejandro ; Siginer, Dennis A. / Heat transfer in steady viscoelastic flow in pipes of complex shapes. Fluids Engineering. American Society of Mechanical Engineers (ASME), 2002. pp. 283-289
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Letelier, MF, Mardoñez, A & Siginer, DA 2002, Heat transfer in steady viscoelastic flow in pipes of complex shapes. in Fluids Engineering. American Society of Mechanical Engineers (ASME), pp. 283-289. https://doi.org/10.1115/IMECE2002-32232

Heat transfer in steady viscoelastic flow in pipes of complex shapes. / Letelier, Mario F.; Mardoñez, Alejandro; Siginer, Dennis A.

Fluids Engineering. American Society of Mechanical Engineers (ASME), 2002. p. 283-289.

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

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Letelier MF, Mardoñez A, Siginer DA. Heat transfer in steady viscoelastic flow in pipes of complex shapes. In Fluids Engineering. American Society of Mechanical Engineers (ASME). 2002. p. 283-289 https://doi.org/10.1115/IMECE2002-32232