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首页> 外文会议>BSME International Conference on Thermal Engineering >Double-diffusive Natural Convection of Cu-Water Nanofluid in a Window Shaped Cavity Containing Multiple Obstacles with a Heater on Bottom Wall
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Double-diffusive Natural Convection of Cu-Water Nanofluid in a Window Shaped Cavity Containing Multiple Obstacles with a Heater on Bottom Wall

机译：窗形腔内Cu水纳米流体的双重扩散自然对流，底墙上的加热器含有多个障碍物

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摘要

In the present study, natural convective heat and mass transfer and fluid flow inside a window shaped cavity filled with Cu-water nanofluid and containing multiple obstacles with a finite size heater placed in its horizontal wall is numerically investigated. Sinusoidal temperature distribution is maintained by the heater. The left and right inclined walls of the cavity are maintained at a relatively low temperature while the vertical walls are insulated. The governing equations are transformed to the dimensionless form and solved numerically using Galerkin weighted residual technique of finite element method. The influence of pertinent parameters such as thermal Rayleigh number, location of the heater and solid volume fraction of nanoparticles on the heat and mass transfer and fluid flow is studied. The results are obtained in terms of streamlines, isotherms, isoconcentrations, average Sherwood number and average Nueeslt number for the considered parameters and it is observed that the flow pattern, temperature and concentration fields are affected by the variation of the mentioned parameters.
机译：在本研究中，在数值上研究了填充有Cu水纳米流体的窗形腔内内的自然对流热和质量传递和流体流动填充有Cu水纳米流体并含有多个障碍物的多个障碍物。通过加热器维持正弦温度分布。腔的左右倾斜壁保持在相对较低的温度，而垂直壁是绝缘的。控制方程被转变为无量纲形式并使用有限元方法的Galerkin加权残余技术进行数值求解。研究了诸如热瑞利数，加热器的位置和纳米颗粒的固体体积分数的相关参数的影响，以及热量和传质流体流动。结果是在简化的方向，等温，等温度，平均舍伍德数和平均NUEESLT编号的所考虑的参数中获得，并且观察到流动模式，温度和浓度区域受到所提到的参数的变化的影响。

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