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Viscous dissipation effects on turbulent heat transfer in pipes with uniform wall heat flux
Author(s) -
Ou JennWuu,
Cheng K. C.
Publication year - 1975
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450530408
Subject(s) - turbulence , nusselt number , mechanics , heat flux , prandtl number , dissipation , reynolds number , heat transfer , convective heat transfer , grashof number , turbulent prandtl number , thermodynamics , materials science , physics
An analysis is made of the turbulent Graetz problem with viscous energy dissipation effects in pipes with uniform wall beat flux. The effects of viscous dissipation on fully developed Nusselt numbers are studied for fluids with Prandtl numbers 1, 10, 10 2 , 10 3 for Reynolds numbers between 5 × 10 3 and 5 × 10 5 with both cooling and heating conditions at the pipe wall. The viscous dissipation effects on convective turbulent heat transfer in arctic hot oil pipelines are discussed.