Abstract In this experimental study, hydrothermal characteristics of a U-tube equipped with twisted-tape inserts are investigated experimentally. The twisting effects of side wall are also investigated for the U-tube as… Click to show full abstract
Abstract In this experimental study, hydrothermal characteristics of a U-tube equipped with twisted-tape inserts are investigated experimentally. The twisting effects of side wall are also investigated for the U-tube as compared to the smooth case. Two twist ratios of 2 and 6 are considered for the twisted-tape and tested in both the smooth and the twisted U-tube at the turbulent flow regime (3843
               
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