FREE-CONVECTIVE HEAT TRANSFER FROM CYLINDRICAL SURFACES WITH TRANSVERSE SECTIONAL FINNING
V. G. Gorobets UDC 536.245 A mathematical model has been developed and numerical calculations of heat transfer have been performed for a horizontal heated cylindrical base with transverse sectional finning under the conditions of free-convective flow of an external heat-transfer agent. The effect of concurrent flows from lower fins on the heat transfer of upper fins has been studied. Local thermal characteristics of individual sectional fins on different portions of the cylindrical base and total heat fluxes removed by a finned surface have been determined. Results of the calculation have been compared to experimental data and satisfactory agreement of them has been obtained. Institute of Technical Thermal Physics, National Academy of Sciences of Ukraine, Kiev, Ukraine. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 75, No. 6, pp. 81-88, November-December, 2002. Original article submitted February 26, 2002. JEPTER7492020027 JEPTER749207