Hydro-thermal characteristics of flow of different corrugated channels: Experimental and numerical approaches
Year: 2024
Type: article
Abstract: Corrugated surfaces are an efficient design feature found in many applications in industrial and engineering fields, such as electronic device cooling systems, used to improve heat transfer rates . However, the high pressure drop through them strongly impacts on systems overall thermal performance. The current study first reports experimentally the entropy generation in laminar flow forced convection heat transfer inside a sinusoidal corrugated channel and then numerically extended with additional proposed channel configurations to compare the different profiles with the straight profile. For Reynolds numbers between 512.6 and 1534.8 and a heat flux of 2.8 and 5.73 kW/m 2 , the main findings of experimental results are displayed in terms of the average Nusselt number , temperature distribution, pressure drop, friction factor , and total entropy generation. Experimental results revealed a maximum value of average Nusselt number of 6.067 and a total entropy generation of 0.556 W/K at Re = 1534.8. It was also found numerically with the same range of Reynolds numbers as the experimental investigation that both sinusoidal and triangular corrugated channels can augment the average Nusselt number by 51 % and 27 % compared to the straight channel, respectively. The sinusoidal corrugated channel performance factor of 1.045 was obtained at Re = 1534.8.
Authors: Fatimah Q. Al-Daamee, Naseer H. Hamza
Institution: University of Al-Qadisiyah
Language: English
Topic: Heat Transfer Mechanisms
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,320
OpenAlex ID: W4402733218