TY - JOUR ID - 1517 TI - Control volume finite element modeling of free convection inside an inclined porous enclosure with a sinusoidal hot wall JO - Scientia Iranica JA - SCI LA - en SN - 1026-3098 AU - Janalizadeh, Asskar AU - Soleimani kutanaei, Saman AU - Soleimani kutanaei, Saman AU - Ghasemi, E. AD - Department of Civil Engineering, Babol University of Technology, Babol, Iran AD - Department of Mechanical Engineering, University of Idaho, 1776 Science Center Y1 - 2013 PY - 2013 VL - 20 IS - 5 SP - 1401 EP - 1414 KW - Porous enclosure, Natural convection, Sinusoidal wall KW - Inclination angle KW - CVFEM DO - N2 - In this study, the effects of different governing parameters on natural convection heat transfer between an inclined hot basement roof and a cold environment are investigated numerically using the Control Volume based Finite Element Method (CVFEM). The medium between the cold and hot surfaces is filled by soil which can be considered as a porous media. The physical model can be approximated as an enclosure with various inclination angles. The cold wall of the enclosure is assumed to mimic a sinusoidal profile with different dimensionless amplitudes. The numerical investigations are conducted at the Prandtl number (Pr 1) and various values of non-dimensional governing parameters namely: the porosity ( ), Darcy number (Da ) and Rayleigh number ( Ra ). The geometrical variables in this study are the inclination angle ( ) and dimensionless amplitude (a ) of the sinusoidal cold wall. The obtained results show the significant effects of  and a on the streamlines and isotherms as well as the local and average Nusselt numbers at various values ofDa , andRa . Effects of the governing parameters on heat transfer and fluid flow in the upper and lower parts of the enclosure are also investigated. UR - https://scientiairanica.sharif.edu/article_1517.html L1 - https://scientiairanica.sharif.edu/article_1517_e4a4ec93ad2297c9279ca4904bcc083b.pdf ER -