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Heat transfer optimization of hybrid nanomaterial using modified Buongiorno model: A sensitivity analysis
International Journal of Heat and Mass Transfer ( IF 5.0 ) Pub Date : 2021-02-25 , DOI: 10.1016/j.ijheatmasstransfer.2021.121081
B. Mahanthesh , S.A. Shehzad , Joby Mackolil , N.S. Shashikumar

Sensitivity analysis of the heat transfer rate in the flow of the hybrid nanoliquid C2H6O2H2O (base liquid) +MoS2Ag (nanoparticles) over a wedge using the Response Surface Methodology (RSM) is carried out. The nanomaterial is modeled using the modified Buongiorno nanofluid model (MBNM) that considers the major slip mechanisms and the effective properties of the hybrid nanoliquid. Two distinct heat sources- linear thermal heat source and an exponential space-dependent heat source are taken into account. The governing nonlinear two-point boundary-layer flow problem is treated numerically. The effects of pertinent parameters on the flow fields in the boundary layer region are represented graphically with suitable physical interpretations. The exponential heat source and slip mechanisms are used to study the sensitivities of the heat transfer rate. Both heat source mechanisms lead to an improvement in the temperature profile, in which the effect of the exponential space-related heat source is predominant. The Brownian motion parameter was found to be the most sensitive to the heat transfer rate.



中文翻译:

使用改进的Buongiorno模型优化杂化纳米材料的传热:敏感性分析

杂化纳米液体流动中传热速率的敏感性分析 C2个H6Ø2个-H2个Ø (基础液)+中号Ø小号2个-一种G使用响应表面方法(RSM)在楔形体上生成纳米粒子(纳米粒子)。使用改良的Buongiorno纳米流体模型(MBNM)对纳米材料进行建模,该模型考虑了杂化纳米液体的主要滑动机理和有效特性。考虑了两个不同的热源-线性热源和依赖于空间的指数热源。对控制的非线性两点边界层流动问题进行了数值处理。有关参数对边界层区域内流场的影响用适当的物理解释以图形方式表示。指数热源和滑移机制用于研究传热速率的敏感性。两种热源机制都可以改善温度曲线,其中,与空间有关的指数热源的作用是主要的。发现布朗运动参数对传热速率最敏感。

更新日期:2021-02-25
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