A numerical study of heat transfer charcteristics of a car radiator involved nanofluids

Abstract To investigate the heat transfer characteristics of a car radiator involved nanofluids, we used GAMBIT & FLUENT softwares and calculated the effective physical parameters using some famous models as a single‐phase mixture. Carbon nanotubes and boron nitride nanotubes have been used in less than 1% volume concentration in flat and twisted tubes. Our results show that nanofluids application in a twisted tube gives a great enhancement in the thermal performance in comparison of the flat tube.