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吉林化工学院学报, 2021, 38(5): 45-50     https://doi.org/10.16039/j.cnki.cn22-1249.2021.05.010
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磁场作用下倾斜方腔内纳米流体自然对流数值模拟
齐美娜,罗小红*,陈庆
吉林化工学院 机电工程学院 吉林 吉林 132022
Numerical Simulation of Natural Convection of Nanofluids in an Inclined Square Cavity under the Effect of Magnetic Field
QI Meina,LUO Xiaohong*,CHEN Qing
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摘要 

采用Chebyshev配置点谱方法对倾斜方腔内纳米流体自然对流换热进行了数值模拟。倾斜方腔的左右壁面分别为恒温壁面,上下壁面为绝热壁面,并施加了与方腔下壁面平行的磁场。方腔内充满了以水为基液,不同纳米颗粒。研究方腔倾斜角度g、Gr数和纳米颗粒对纳米流体流动与传热的影响。研究结果表明:传热在倾斜角度为p/4时最大,当方腔倾斜角度为p/3时传热受到抑制;纳米流体流动与传热受Gr数影响比较显著;不同纳米颗粒对传热影响趋势大致相同。

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齐美娜
罗小红
陈庆
关键词:  纳米流体  倾斜方腔  磁场  自然对流     
Abstract: 

The natural convetion of nanofluids in an inclined square cavity are numerically simulated by using Chebyshev collocation spectral methods. The left-hand and right-hand walls of the cavity were kept at a constant temperature, while the upper and lower walls were insulated. The magnetic field parallel to the lower wall of the inclined cavity is imposed. The cavity is filled with different nanoparticles, based on water. The effects of pertinent parameters such as the inclined angle of the square cavity, Grashof number and the solid nanoparticles on the fluid flow and heat transfer of nanofluids. The results show that the heat transfer of nanofluids is maximum when the inclined angle is p/4, while the heat transfer of nanofluids is restrained when the inclined angle is p/3. The fluid flow and heat transfer of nanofluids are a significant change with Grashof number. The influence of different nanoparticles on heat transfer is similar.

Key words:  nanofluids    inclined cavity    magnetic field    natural convection
               出版日期:  2021-05-25      发布日期:  2021-05-25      整期出版日期:  2021-05-25
TK121  
引用本文:    
齐美娜, 罗小红, 陈庆. 磁场作用下倾斜方腔内纳米流体自然对流数值模拟 [J]. 吉林化工学院学报, 2021, 38(5): 45-50.
QI Meina, LUO Xiaohong, CHEN Qing. Numerical Simulation of Natural Convection of Nanofluids in an Inclined Square Cavity under the Effect of Magnetic Field . Journal of Jilin Institute of Chemical Technology, 2021, 38(5): 45-50.
链接本文:  
https://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2021.05.010  或          https://xuebao.jlict.edu.cn/CN/Y2021/V38/I5/45
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