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ISSN Online: 2377-424X

International Heat Transfer Conference 5
September, 3-7, 1974, Tokyo, Japan

HEAT TRANSFER TO LAMINAR AXIAL FLOW IN A CONCENTRIC ANNULUS FROM A ROTATING INNER CYLINDER

Get access (open in a dialog) DOI: 10.1615/IHTC5.1800
pages 80-84

Resumo

The numerical finite-difference procedure of Gosman et al /1/ is used to predict laminar heat transfer at uniform heat flux from the inner rotating core of a concentric annulus to axially-flowing fluid in the absence of Taylor vortices when the outer stationary surface is adiabatic. Measurements for r1 = 0.9 accord well with predictions up to the onset of instability which, over the Ω range investigated, lies slightly upstream of that expected from Astill's /2/ empirical isothermal criterion. Vortex flow generally achieves full thermal development within the annulus length with heat transfer up to six times that of laminar flow.