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Heat Transfer Research

ISSN for PRINT: 1064-2285

Institutional price:	$2485.00
Issues per year:	8

Best Paper Award Selection - Editorial Board Site

2006, Volume37

108 pages

DOI: 10.1615/HeatTransRes.v37.i6

Issue price - $363.00

Heat Transfer during Flow Twisting in a Channel of Square Cross Section

Yu. I. Shanin
"Luch" Scientific-Research and Production Association, 24 Zheleznodorozhnaya Str., Podolsk, 142100, Russia

ABSTRACT

Experimental results on the drag ξ, reduced heat transfer α_red, surface heat transfer α on one-sided thermal loading in cooling copper channel systems, in which, to intensity heat transfer, spiral tapes are inserted with a step of d_h/2H ≈ 0.015-0.115. The data obtained for water as a coolant in the range of Reynolds numbers 200 ≤ Re ≤ 310 are generalized piecewise by exponential dimensionless equations. The strongest differences from the channel system without intensifiers for relative resistance and heat transfer is observed in the region of Reynolds numbers Re = 300-8000 with a maximum attained at Re = 1000; at d_h/2H = 0.115 the heat-transfer rate is doubled on a 2.3-fold increase in the drag.