Journal
JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS
Volume 7, Issue 4, Pages -Publisher
ASME
DOI: 10.1115/1.4030792
Keywords
laminar forced convection; integral transverse rib roughness; twisted tapes with oblique teeth; heat transfer enhancement; swirl flow
Categories
Funding
- MHRD, Government of India
- DST, Government of India
- CSIR, Government of India
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The experimental friction factor and Nusselt number data for laminar flow of viscous oil through a circular duct having integral transverse rib roughness and fitted with twisted tapes with oblique teeth have 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 twisted tapes with oblique teeth in combination with integral transverse rib roughness perform significantly better than the individual enhancement technique acting alone for laminar flow through a circular duct up to a certain value of fin parameter.
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