Mixed convection of EG/NEPCM inside a lid-driven cavity with a rotating cylinder

被引：10

作者：

Zhang, Yang ^{[1
]}

Lin, Haitao ^{[2
]}

Chaturvedi, Rishabh ^{[3
]}

Singh, Pradeep Kumar ^{[4
]}

Mansir, Ibrahim B. ^{[5
,6
]}

Zhang, KePing ^{[1
]}

Alhoee, Javid ^{[7
]}

机构：

[1] Gansu Agr Univ, Mech & Elect Engn Coll, Lanzhou 730070, Peoples R China

[2] Yuxi Normal Univ, Yuxi 653100, Yunnan, Peoples R China

[3] GLA Univ, Dept Mech Engn, Mathura, India

[4] GLA Univ, Inst Engn & Technol, Dept Mech Engn, Mathura 281406, India

[5] Prince Sattam bin Abdulaziz Univ, Coll Engn Al Kharj, Dept Mech Engn, Al Kharj 11942, Saudi Arabia

[6] Ahmadu Bello Univ, Ctr Energy Res & Training, PMB 1045, Zaria, Nigeria

[7] Ton Duc Thang Univ, Fac Environm & Labour Safety, Sustainable Management Nat Resources & Environm Re, Ho Chi Minh City, Vietnam

来源：

CASE STUDIES IN THERMAL ENGINEERING | 2023年 / 47卷

关键词：

Mixed convection; Lid-driven cavity; Rotating cylinder; NEPCM; CFD simulation; HEAT-TRANSFER;

D O I：

10.1016/j.csite.2023.103072

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Using the potential of nature's phenomena such as free convection phenomenon could help to cooling a piece, such as a moving hot plate in lid-driven problems. Moreover, adding modern nanostructures named nano-encapsulated phase change material (NEPCM) with ability of phase transition could greatly improve the heat transfer processes. In this study, the mixed convection of ethylene glycol (EG) and NEPCM was simulated inside a lid-driven cavity with a rotating cylinder to evaluate the contribution of Grashof number, cylinder speed, and concentration of NEPCM on the heat transfer characteristics. Hence, the findings of current numerical study indicated that the NEPCM with 6% concentration increased the mean Nusselt number by 41.7%. Moreover, the cylinder speed enhanced the mean Nusselt number by 38.7%. Finally, there was an optimum value for concentration occurred in 4% brought for Grashof number of 104.

引用

页数：12

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