ISSN Online: 2377-424X
International Heat Transfer Conference 5
HEAT TRANSFER TO LAMINAR AXIAL FLOW IN A CONCENTRIC ANNULUS FROM A ROTATING INNER CYLINDER
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.