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

被引：7

作者：

Jassim, Hussein M. ^{[1
]}

Ali, Farooq H. ^{[1
]}

Al-Amir, Qusay R. ^{[1
]}

Hamzah, Hameed K. ^{[1
]}

Khafaji, Salwan Obaid Waheed ^{[1
]}

机构：

[1] Univ Babylon, Coll Engn, Mech Engn Dept, Hilla 51, Babylon, Iraq

来源：

FRONTIERS IN HEAT AND MASS TRANSFER | 2019年 / 12卷

关键词：

Natural convection; Entropy generation; Different shapes inner cylinders; Corrugation outer cylinder; CAVITY;

D O I：

10.5098/hmt.12.22

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This study is focused on the entropy generation or laminar natural convection inside a sinusoidal enclosure filled with air (Pr=0.71). The numerical investigation is performed for three shapes of inner cylinder (circle, square, and equilateral triangle) with the same area and different values of the Rayleigh number (10(3)-10(6)). 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.

引用

页数：9

共 28 条

[1] Numerical study of entropy generation and natural convection heat transfer in trapezoidal enclosure with a thin baffle attached to inner wall using liquid nanofluid [J].

Abdulkadhim, Ammar ;

Kadhem Hamzah, Hameed ;

Abed, Azher M. ;

Ali, Farooq Hassan .

Annales de Chimie: Science des Materiaux, 2017, 41 (1-2) :7-28

[2]

Al-Amir Q.R., 2017, IRAQI J MECH MAT ENG, V17, P291

[3] Natural Convection and Entropy Generation in a Nanofluid-Filled Semi-Circular Enclosure with Heat Flux Source [J].

Al-Zamily, Ali ;

Amin, M. Ruhul .

6th BSME International Conference on Thermal Engineering, 2015, 105 :418-424

[4] Entropy Generation Analysis and Natural Convection in a Nanofluid-Filled Square Cavity with a Concentric Solid Insert and Different Temperature Distributions [J].

Alsabery, Ammar I. ;

Ishak, Muhamad Safwan ;

Chamkha, Ali J. ;

Hashim, Ishak .

ENTROPY, 2018, 20 (05)

[5]

[Anonymous], ENTROPY

[6] EFFECTS OF THERMAL BOUNDARY CONDITIONS ON ENTROPY GENERATION DURING NATURAL CONVECTION [J].

Basak, Tanmay ;

Kaluri, Ram Satish ;

Balakrishnan, A. R. .

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, 2011, 59 (05) :372-402

[7]

Erbay L. B., 2003, Entropy, V5, DOI 10.3390/e5050496

[8]

Gediz G. M., 2008, EFFECT ASPECT RATIO, V35, P696, DOI DOI 10.1016/J.ICHEATMASSTRANSFER.2008.02.002

[9] Analysis of heatlines and entropy generation during double-diffusive MHD natural convection within a tilted sinusoidal corrugated porous enclosure [J].

Hussain, Salam Hadi .

ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH, 2016, 19 (02) :926-945

[10] Three-dimensional unsteady natural convection and entropy generation in an inclined cubical trapezoidal cavity with an isothermal bottom wall [J].

Hussein, Ahmed Kadhim ;

Lioua, Kolsi ;

Chand, Ramesh ;

Sivasankaran, S. ;

Nikbakhti, Rasoul ;

Li, Dong ;

Naceur, Borjini Mohamed ;

Habib, Ben Aissia .

ALEXANDRIA ENGINEERING JOURNAL, 2016, 55 (02) :741-755

← 1 2 3 →