{"title":"Numerical Modeling of Natural Convection on Various Configuration of Rectangular Fin Arrays on Vertical Base Plates","authors":"H.R.Goshayeshi, M.Fahim inia, M.M.Naserian","volume":49,"journal":"International Journal of Mechanical and Mechatronics Engineering","pagesStart":90,"pagesEnd":97,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/1789","abstract":"
In this research, the laminar heat transfer of natural convection on vertical surfaces has been investigated. Most of the studies on natural convection have been considered constantly whereas velocity and temperature domain, do not change with time, transient one are used a lot. Governing equations are solved using a finite volume approach. The convective terms are discretized using the power-law scheme, whereas for diffusive terms the central difference is employed. Coupling between the velocity and pressure is made with SIMPLE algorithm. The resultant system of discretized linear algebraic equations is solved with an alternating direction implicit scheme. Then a configuration of rectangular fins is put in different ways on the surface and heat transfer of natural convection on these surfaces without sliding is studied and finally optimization is done.<\/p>\r\n","references":"[1] BhavnAni,S.H.,Bergles, A.E. \"Effect of surface geometry and \r\norientation on laminar natural convection heat transfer from a vertical\r\nflat plate with transvers roughness elements\u201dInt.J.Heat Mass Transfer , \r\nVol. 44,No. 1,PP 155-167 \r\n[2] Jofre.R.J,Baron.R. F \"Free Convection heat transfer to a rough plate,\u201d \r\nASME Paper No.67 . \r\n[3] Ekert, E. R. Jakson,T.w, \"Analysis of turbulent Free Convection\r\nBoundry on flat plate,\u201d NCA Report .1015 ,(1951) \r\n[4] Bergles,A.E.,junkhan,G.H, \"Energy Conservetion Via heat transfer \r\nmangment quarterly,\u201d Progress Report No . Coo . 4649-59 January.31 \r\nMarch (1979)\r\n[5] BhavnAni,S.H.,Bergles, A.E, \"Effect of surface geometry and \r\norientation on laminar natural convection heat transfer from a vertical \r\nflat plate with transvers roughness elements,\u201dInt.J.Heat Mass Transfer ,\r\nVol.43, No. 1,PP 135-121 \r\n[6] Rubbert, P.E, \"The emergence of advanced computional methods in the\r\naerodyna,icDsign of commercial Trans port aircraft,\u201d \r\ninProc.Intsymp.comp.Fluid Dynamics, Vol.1 ,PP.42-48 \r\n[7] Green, J.E, \"In numerical methods in aeronoautical fluid Dynamics,\u201d ed\r\n. by P .L.Roe ,PP.1-39(1982)\r\n[8] Chapman, D.R,J.AIAA, Vol. 1,pp.293-1313,(1981)\r\n[9] Churchill.S.W.,Usagi, \"A general for the correlation of Rates of transfer \r\nand other Phenomena,\u201dAlche J. Vol. 18, PP.1121-1128(1979) \r\n[10] KavehpourHPFaghri MAsako Y1997, \"Effects of compressibility and \r\nrarefaction on gaseous flows in microchannels,\u201dAmerican Society of \r\nMechanical Engineers Heat. Transfer Division (Publication) HTD,pp. \r\n41-47. \r\n[11] Gray D,Giorgini A,1976, \"The validity of the boussinesq approximation \r\nfor liquids and gases,\u201d International Journal of Heat and Mass Transfer \r\n19: 545-551. \r\n[12] Patankar SV,1980, \"Numerical Heat Transfer and Fluid Flow,\u201d \r\nMcGraw-Hill, New York \r\n[13] Harahap, F., Setio, D., \" Correlations for Heat Dissipation and Natural \r\nConvection Heat-Transfer from Horizontally-Based, Vertically-Finned\r\nArrays,\" International Journal of Applied Energy, Vol. 69, pp. 29-38, \r\n2001. ","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 49, 2011"}