Heat transfer in pulsatile flow through a straight distensible tube

J. G. Georgiadis

Research output: Contribution to journalConference article

Abstract

An analytical investigation of unsteady heat transfer in a Newtonian fluid is reported in the case of flow driven by an oscillatory pressure gradient through a tube with deformable walls. Axisymmetric velocity profiles are obtained for a variety of stroke volumes and oscillation frequencies and then used to predict the temperature distribution inside the tube for large times and adiabatic boundary conditions. Heat is dispersed by the combined action of pulsatile convective transport of fluid and molecular diffusion and thus an effective diffusivity that is larger than the molecular diffusivity can result. The interesting result of the present work is that the longitudinal dispersion of heat is further enhanced by the lateral motion of the walls.

Original languageEnglish (US)
Pages (from-to)71-76
Number of pages6
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume101
StatePublished - Dec 1 1988
EventSymposium on Fundamentals of Forced Convection Heat Transfer - Chicago, IL, USA
Duration: Nov 27 1988Dec 2 1988

ASJC Scopus subject areas

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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