@Article{hmt.19.28,
AUTHOR = {M. O. Petinrin
, B. A. Sikirullahi, T. T. Olugasa, O. M. Oyewola},
TITLE = {CROSSFLOW AND HEAT TRANSFER CHARACTERISTICS ACROSS A  CAM-SHAPED TUBE BANK: A NUMERICAL STUDY},
JOURNAL = {Frontiers in Heat and Mass Transfer},
VOLUME = {19},
YEAR = {2022},
NUMBER = {1},
PAGES = {1--8},
URL = {http://www.techscience.com/fhmt/v19n1/52419},
ISSN = {2151-8629},
ABSTRACT = {Tubes are commonly employed in heat exchangers for their ease of production and capacity to sustain high pressure. In this study, the heat and flow 
transfer behaviour of cam-shaped tube bank in staggered configuration at varying angles of attack 0°to 180° was numerically investigated. The study 
was carried out by solving the continuity, momentum, energy and realizable k-ε transport equations using the finite volume-based ANSYS Fluent 
solver. This was performed to acquire the friction factor and heat transfer characteristics in the air inlet velocity range of 9 to 15 m/s. The results showed 
that the cam-shaped tube bank at varying angles of attack provided enhanced heat transfer characteristics relative to the circular tube bank. Also, camshaped tube banks at angles of attack of 90° and 120° exhibited the maximum heat transfer with 33.9 and 32.1% increase in Nusselt number over the 
circular tubes. Their friction factor was higher by 183 and 140.7%, respectively. The cam-shaped tube banks generally exhibited higher performance 
than the circular tube bank. Tube banks at angles of attack of 150° and 180° demonstrated higher thermal-hydraulic performance by 167.6 and 284.3% 
than the circular tubes, respectively. However, the tube banks at angles 90° and 120° exhibited lesser performance by value of 52.6 and 45.1%.},
DOI = {10.5098/hmt.19.28}
}