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Jang, Bongsoo
Computational Mathematical Science Lab (CMS Lab)
Research Interests
  • Numerical analysis, dynamics, fractional systems, data sciences

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Cooling of Heat Sources by Natural Convection Heat Transfer in a Vertical Annulus

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dc.contributor.author Sankar, M. ko
dc.contributor.author Do, Younghae ko
dc.contributor.author Ryu, Soorok ko
dc.contributor.author Jang, Bongsoo ko
dc.date.available 2015-07-03T06:34:58Z -
dc.date.created 2015-07-03 ko
dc.date.issued 2015-10 ko
dc.identifier.citation NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, v.68, no.8, pp.847 - 869 ko
dc.identifier.issn 1040-7782 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/11847 -
dc.description.abstract This article reports convection heat transfer in a short and tall annular enclosure with two discrete isoflux heat sources of different lengths. The discrete heat sources are mounted at the inner wall and the outer wall is maintained at a lower temperature, whereas the top and bottom walls and the unheated portions of the inner wall are kept at adiabatic. An implicit finite-difference method is employed to solve the vorticity-stream function formulations of the governing equations. The significant influence of the discrete heaters on the flow and heat transfer is analyzed for a wide range of modified Rayleigh numbers, aspect ratio, and length ratio (epsilon) of heat sources. Our numerical results reveal that the average Nusselt number decreases with aspect ratio, whereas the magnitude of maximum temperature increases with the aspect ratio. For most of the parametric cases considered in the present study, the heat transfer rate is found to be higher at the bottom heater than at the top heater except for epsilon=0.5. The effect of heater length ratio on the heat transfer rate is noticeable for unit aspect ratio, whereas its effect is insignificant as the aspect ratio increases. Furthermore, it was found that the maximum temperature is found generally at the top heater except for the case epsilon=0.5, where the maximum temperature is found at the bottom heater ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher TAYLOR & FRANCIS INC ko
dc.title Cooling of Heat Sources by Natural Convection Heat Transfer in a Vertical Annulus ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84930708049 ko
dc.identifier.wosid 000355682800003 ko
dc.type.rims ART ko
dc.description.wostc 0 *
dc.description.scopustc 0 *
dc.date.tcdate 2015-12-28 *
dc.date.scptcdate 2015-11-04 *
dc.identifier.doi 10.1080/10407782.2015.1023097 ko
dc.identifier.url http://www.tandfonline.com/doi/abs/10.1080/10407782.2015.1023097#.VZYTihvtlBc ko
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