Purpose

The purpose of this paper is to study numerically the steady thermal convection in a chamber filled with a nanoliquid affected by a chemical reaction using the single-phase nanofluid approximation.

Design/methodology/approach

Water was considered as a host fluid while nanoparticles are aluminum oxide. Homogeneous reactions are analyzed. The nonlinear partial differential equations describing the considered problem are simulated using the finite difference technique.

Findings

The results of streamlines, isotherms, isoconcentrations, nanofluid flow rate, mean Nusselt and Sherwood numbers are discussed. The data demonstrate that the mean Sherwood number increases with the homogeneous reaction rate. Further, nanofluid flow rate can be increased with nanoparticles concentration for high Rayleigh numbers owing to the homogeneous chemical reaction inside the cavity.

Originality/value

Searching the existent references illustrates that the homogeneous-heterogeneous reactions influence on the nanoliquid motion and energy transport within enclosures has not been investigated before. The results of this paper are completely original and the numerical results of the present paper were never published by any researcher.

中文翻译：

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使用Tiwari和Das模型在充满由化学反应驱动的纳米悬浮液的腔室内进行热对流

目的

本文的目的是使用单相纳米流体近似数值研究充满化学反应影响的纳米液体的腔室内的稳态热对流。

设计/方法/方法

水被认为是一种主体流体，而纳米粒子是氧化铝。分析均相反应。使用有限差分技术对描述所考虑问题的非线性偏微分方程进行仿真。

发现

讨论了流线，等温线，等浓度，纳米流体流速，平均Nusselt和Sherwood数的结果。数据表明，平均舍伍德数随均相反应速率而增加。此外，由于腔内的均匀化学反应，对于高瑞利数，纳米颗粒的浓度可以增加纳米流体的流速。

创意/价值

搜索现有参考文献表明，以前尚未研究过均相-异相反应对纳米液体运动和外壳内能量传输的影响。本文的结果是完全原始的，本文的数值结果从未被任何研究者发表过。