期刊
EXPERIMENTAL THERMAL AND FLUID SCIENCE
卷 57, 期 -, 页码 388-395出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.expthermflusci.2014.06.008
关键词
Laminar flow; Forced convection; Integral transverse corrugations; Twisted tapes; Heat transfer enhancement; Swirl flow
资金
- MHRD
- DST
- CSIR, Government of India
The experimental friction factor and Nusselt number data for laminar flow through a circular duct having integral transverse corrugation and fitted with centre-cleared twisted-tape has been presented. Predictive friction factor and Nusselt number correlations have also been presented. The thermohydraulic performance has been evaluated. The major findings of this experimental investigation are that the centre-cleared twisted tapes in combination with integral transverse corrugation perform better than the individual enhancement technique acting alone for laminar flow through a circular duct up to a certain amount of twisted-tape centre-clearance. (C) 2014 Elsevier Inc. All rights reserved.
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