Hussein M. Jassim, Farooq H. Ali*
, Qusay R. Al-Amir, Hameed K. Hamzah, Salwan Obaid Waheed Khafaji
Frontiers in Heat and Mass Transfer, Vol.12, pp. 1-9, 2019, DOI:10.5098/hmt.12.22
Abstract This study is focused on the entropy generation of laminar natural convection inside a sinusoidal enclosure filled with air (Pr=0.71). The numerical
investigation is performed for three shapes of inner cylinders (circle, square, and equilateral triangle) with the same area and different values of the
Rayleigh number (103-106). Galerkin Finite Element Approach is utilized to solve the governing equations. The results showed that the entropy
generations due to heat transfer, fluid friction and total entropy generation increase with increasing values of Rayleigh number, while the local Bejan
number decreases. More >
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