@Article{fhmt.2023.044605,
AUTHOR = {Mainak Bhaumik, Anirban Sur, Kavita Dhanawade},
TITLE = {An Experimental Investigation of Aero-Foil-Shaped Pin Fin Arrays},
JOURNAL = {Frontiers in Heat and Mass Transfer},
VOLUME = {21},
YEAR = {2023},
NUMBER = {1},
PAGES = {467--486},
URL = {http://www.techscience.com/fhmt/v21n1/54749},
ISSN = {2151-8629},
ABSTRACT = {Pin fins are widely used in applications where effective heat transfer is crucial. Their compact design, high surface
area, and efficient heat transfer characteristics make them a practical choice for many thermal management
applications. But for a high heat transfer rate and lightweight application, aerofoil shape pin fins are a good option.
This work focuses on an experimental model analysis of pin-fins with aerofoil shapes. The results were evaluated
between perforation, no perforation, inline, and staggered fin configurations. Aluminum is used to make the pin
fins array. The experiment is carried out inside a wind tunnel, and the heat supply varies between 500 to 3000 W.
An electric heater, fan, anemometer, thermocouple, pressure transmitter, data logger, and computer system were
used for this experiment. The friction factor, thermal efficiency, performance efficacy, and pressure drop of a pin fin
aerofoil shape have been assessed. A comparison study was carried out with and without perforations and inline and
staggered arrangements. In terms of overall efficacy, different aerofoil shape pin fin arrays achieve values varying
between 1.8 and 14.7. The acquired data demonstrate that perforated staggered configurations perform 10% better
than inline. Furthermore, the pressure drop is reduced by 50% in staggered setups. The empirical correlation of
Dittus-Bolter and Blasius correlations was used to validate the experimental heat dissipation enhancement factor
requirements of Nusselt number and friction factor. The validation of the experiment using correlation has been
completed satisfactorily. Hence, experimental results prove that aerofoil pin-fin arrays can be used successfully for
applications like the electronics industry, heat exchangers and gas turbine blade cooling.},
DOI = {10.32604/fhmt.2023.044605}
}