Experimental and numerical characterization of single-phase pressure drop and heat transfer enhancement in helical corrugated tubes
Gonçalo G. Cruz,
Miguel A. A. Mendes,
Jos M. C. Pereira
et al.
Abstract:The internal flow in corrugated tubes of different helical pitch, covering from the laminar to turbulent regime, was studied in order to characterize the three-dimensional flow and the influence of corrugation geometry on pressure drop and convective heat transfer. With water as working fluid and an imposed wall heat flux, ranging from around 4 to 33 kW/m 2 , a numerical model was developed with a CFD commercial software, where k − ω SST was used to model turbulence. Experimental tests were performed covering … Show more
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