Heat transfer and turbulent simulation of nanomaterial due to compound turbulator including irreversibility analysis

被引：253

作者：

Sheikholeslami, M. ^{[1
]}

Jafaryar, M. ^{[2
]}

Hedayat, Mohammadali ^{[3
]}

Shafee, Ahmad ^{[4
]}

Li, Zhixiong ^{[5
,6
]}

Truong Khang Nguyen ^{[7
,8
]}

Bakouri, Mohsen ^{[9
,10
]}

机构：

[1] Babol Noshirvani Univ Technol, Dept Mech Engn, Babol Sar, Iran

[2] MR CFD LLC, 49,Gakhokidze St, Tbilisi, Georgia

[3] Texas A&M Univ, J Mike Walker 66 Dept Mech Engn, College Stn, TX USA

[4] Publ Author Appl Educ & Training, Coll Technol Studies, Appl Sci Dept, Shuwaikh, Kuwait

[5] Ocean Univ China, Sch Engn, Qingdao 266110, Shandong, Peoples R China

[6] Univ Wollongong, Sch Mech Mat Mechatron & Biomed Engn, Wollongong, NSW 2522, Australia

[7] Ton Duc Thang Univ, Inst Computat Sci, Div Computat Phys, Ho Chi Minh City, Vietnam

[8] Ton Duc Thang Univ, Fac Elect & Elect Engn, Ho Chi Minh City, Vietnam

[9] Majmaah Univ, Coll Appl Med Sci, Dept Med Equipment Technol, Al Majmaah 11952, Saudi Arabia

[10] Sebha Univ, Coll Art, Dept Phys, Traghen, Libya

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2019年 / 137卷

关键词：

Heat transfer; Entropy generation; Compound turbulator; Forced convection; Nanofluid; Friction; MHD NATURAL-CONVECTION; NUMERICAL APPROACH; MIXED CONVECTION; NANOFLUID; FLOW; ENTROPY; CAVITY; NANOPARTICLES; EXERGY; VISUALIZATION;

D O I：

10.1016/j.ijheatmasstransfer.2019.04.030

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this research, combined turbulator was proposed to achieve good thermal performance. Steady turbulent flow of copper oxide nanofluid with homogeneous model was simulated involving k-epsilon model. Among various geometric parameters, height of turbulator (b) has been selected and its variation as well as Reynolds number was demonstrated in outputs. Exergy loss as well as flow and heat transfer was analyzed. Augmenting b is capable of increasing heat transfer. More disturbances can be seen with augmenting inlet velocity. Exergy loss is inversely proportional to increase of pumping power. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：1290 / 1300

页数：11

共 29 条

[1] A theoretical investigation of unsteady thermally stratified flow of γAl2O3 - H2O and γAl2O3 - C2H6O2 nanofluids through a thin slit [J].