Buoyancy driven non-Newtonian flows in enclosures

A. Valenzuela-Rendon, D. A. Siginer

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


Two dimensional natural convection for a fluid of third grade, in an inclined cavity of arbitrary aspect ratio is solved by a regular perturbation for small Grashof numbers. Non-Newtonian effects appear at the third order of the analysis in accordance with Tanner's theorem due to the two dimensional nature of the flow. In this slow flow generated by small temperature gradients the contribution of the elastic effects to non-Newtonian behavior is much larger than the shear-thinning behavior. The viscoelastic flow field shows dramatic changes from the Newtonian field.

Original languageEnglish
Title of host publicationRecent Advances in Non-Newtonian Flows
PublisherPubl by ASME
Number of pages8
ISBN (Print)0791811212
Publication statusPublished - 1992
EventWinter Annual Meeting of the American Society of Mechanical Engineers - Anaheim, CA, USA
Duration: Nov 8 1992Nov 13 1992


OtherWinter Annual Meeting of the American Society of Mechanical Engineers
CityAnaheim, CA, USA

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering


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