Laminar flow and heat transfer downstream of a confined backward facing step including variable viscosity effects

G. Vradis, L. Van Nostrand

Research output: Contribution to journalConference article


The hydrodynamic and heat transfer characteristics of the laminar flow field over a backward facing step are studied numerically both for constant properties and for temperature varying viscosity flows (with water as the working fluid). The two walls are maintained at different uniform temperatures while the flow at the step is assumed to be hydrodynamically and thermally fully developed. Calculations are carried out for different Reynolds numbers in the laminar flow regime. The variation of viscosity with temperature is shown to have a substantial effect on both the reattachment length and the local Nusselt number along both walls, the effect becoming stronger as the Reynolds number increases.

Original languageEnglish (US)
Pages (from-to)1-8
Number of pages8
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
StatePublished - Dec 1 1990
EventWinter Annual Meeting of the American Society of Mechanical Engineers - Dallas, TX, USA
Duration: Nov 25 1990Nov 30 1990


ASJC Scopus subject areas

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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