ISSN Online: 2377-424X
ISBN Print: 0-89116-299-2
International Heat Transfer Conference 7
TURBULENT HEAT TRANSFER IN A SWIRL FLOW DOWNSTREAM OF AN ABRUPT PIPE EXPANSION
Аннотация
Calculations of the flow and heat transfer of a swirling turbulent flow after a sudden pipe expansion are reported. The calculations were obtained by the numerical solution with a k-ε turbulence model including a modification to account for effects of streamline curvature. The predicted effects of varying the swirl number from zero to one on the heat transfer behavior
are presented for a range of Prandtl numbers
from 0.7 to 10. The expected effects of
the swirl on the velocity and temperature fields
are also reported. The results predict, for example,
that the maximum Nusselt number is increased
as the swirl number increases and its position moves towards the inlet section. They also show an increase in the Nusselt number as the Prandtl number increases.