ENTROPY GENERATION ANALYSIS OF A NATURAL CONVECTION INSIDE A SINUSOIDAL ENCLOSURE WITH DIFFERENT SHAPES OF CYLINDERS | Zendy

Farooq H. Ali | Zendy; Hussein Mahmood Jassim | Zendy; Qusay Rasheed Al-Amir | Zendy; Hameed K. Hamzah | Zendy; Salwan Obaid Waheed Khafaji | Zendy

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ENTROPY GENERATION ANALYSIS OF A NATURAL CONVECTION INSIDE A SINUSOIDAL ENCLOSURE WITH DIFFERENT SHAPES OF CYLINDERS

Author(s) -

Farooq H. Ali,

Hussein Mahmood Jassim,

Qusay Rasheed Al-Amir,

Hameed K. Hamzah,

Salwan Obaid Waheed Khafaji

Publication year - 2019

Publication title -

frontiers in heat and mass transfer

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.404

H-Index - 18

ISSN - 2151-8629

DOI - 10.5098/hmt.12.22

Subject(s) - enclosure , natural convection , thermal fluids , frontier , thermal , mechanics , entropy (arrow of time) , materials science , heat transfer , thermodynamics , mechanical engineering , computer science , physics , convective heat transfer , engineering , political science , law , telecommunications

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.

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