Hydrothermal and Entropy Investigation of Nanofluid Natural Convection in a Lid-Driven Cavity Concentric with an Elliptical Cavity with a Wavy Boundary Heated from Below

被引：25

作者：

Alshare, Aiman ^{[1
]}

Abderrahmane, Aissa ^{[2
]}

Guedri, Kamel ^{[3
]}

Younis, Obai ^{[4
]}

Fayz-Al-Asad, Muhammed ^{[5
]}

Ali, Hafiz Muhammed ^{[6
,7
]}

Al-Kouz, Wael ^{[8
]}

机构：

[1] German Jordanian Univ, Mech & Maintenance Engn, POB 35247, Amman 11180, Jordan

[2] Univ Mustapha Stambouli Mascara, Lab Phys Quant Matiere & Modelisat Mathemat LPQ3M, Mascara 29000, Algeria

[3] Umm Al Qura Univ, Coll Engn & Islamic Architecture, Dept Mech Engn, POB 715, Mecca 21955, Saudi Arabia

[4] Prince Sattam Bin Abdulaziz Univ, Dept Mech Engn, Coll Engn Wadi Addawaser, Al Kharj 16278, Saudi Arabia

[5] Bangladesh Univ Engn & Technol, Dept Math, Dhaka 1000, Bangladesh

[6] King Fahd Univ Petr & Minerals, Dept Mech Engn, Dhahran 31261, Saudi Arabia

[7] King Fahd Univ Petr & Minerals, Interdisciplinary Res Ctr Renewable Energy & Powe, Dhahran 31261, Saudi Arabia

[8] Amer Univ Middle East, Coll Engn & Technol, Kuwait 15453, Kuwait

来源：

NANOMATERIALS | 2022年 / 12卷 / 09期

关键词：

mixed convection; nanofluid; entropy generation; lid-driven cavity; MIXED CONVECTION; SQUARE ENCLOSURE; FLOW; SINGLE;

D O I：

10.3390/nano12091392

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This work investigates mixed convection in a lid-driven cavity. This cavity is filled with nanofluid and subjected to a magnetic field. The concentric ovoid cavity orientation (gamma), 0-90 degrees, and undulation number (N), 1-4, are considered. The Richardson number (Ri) varies between 1 and 100. The nanofluid volume fraction (phi) ranges between 0 and 0.08%. The effect of the parameters on flow, thermal transport, and entropy generation is illustrated by the stream function, isotherms, and isentropic contours. Heat transfer is augmented and the Nusselt number rises with higher Ri, gamma, N, and phi. The simulations show that the heat transfer is responsible for entropy generation, while frictional and magnetic effects are marginal.

引用

页数：17

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