ISSN Online: 2377-424X
International Heat Transfer Conference 4
FLOW AND HEAT TRANSFER IN ELLIPTIC DUCTS
要約
A study of fully developed flow and heat transfer in elliptical ducts has been made. In the experimental work with water (Pr~6.5), friction factors for pipes with aspect ratios equal to O.316 and 0.415 have been obtained over a Reynolds no. range 103− 30.103. Average local Nusselt numbers in turbulent flow in a stainless steel pipe of aspect ratio 0.284 have been measured for a maximum Reynolds no. and maximum average heat flux of 70.103 and 4.15 W/cm2 respectively. An empirical heat transfer correlation for the particular geometry and conditions is presented.