Open AccessFlow Pattern Investigation and Thermohydraulic Performance Enhancement in Three-Dimensional Circular Pipe under Varying Corrugation Configurations
Author(s) -
Jassim Alhamid,
Ramadhan Ahmed Al-Obaidi
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1845/1/012061
Subject(s) - turbulator , pressure drop , reynolds number , heat transfer , mechanics , nusselt number , materials science , computational fluid dynamics , heat transfer enhancement , heat exchanger , heat transfer coefficient , thermal , turbulence , mechanical engineering , thermodynamics , engineering , physics
Varying methods were tested on the improvement of heat transfer in order to upgrade the concerning equipment, mostly in thermal performance devices. These methods revealed important impacts when employed in heat exchanger pipes. One of the significant methods utilized was the passive performance technique. Corrugations characterize the passive method. Moreover, it offers efficient enhancement of heat transfer due to its joint turbulators and extended surface features. So, Computational Fluid Dynamics (CFD) method is applied for water flowing with a range of Reynolds number (Re) from 1500 to 23000 in different corrugated pipes configurations. This research target to investigate the flow pattern, pressure drop, and thermal performance for smooth and corrugated pipes. The criteria of thermal performance evaluation are analysed for corrugated pipes, and the computational outcomes of pressure drop, heat transfer coefficient (h), friction factor Nusselt number (Nu), ratios of (f/fo) and (Nu/Nuo) are investigated with those of smooth plain. Outcomes revealed the best range of thermal performance is between 1.3 to 1.1 for the pipe, which has the corrugated ring diameter 0.5 mm for Re of 1500.