Stefan blowing impact and chemical response of Rivlin–Reiner fluid through rotating convective disk

IF 1.9 4区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
Pramana Pub Date : 2024-11-09 DOI:10.1007/s12043-024-02836-w
Kotha Gangadhar, T Sujana Sree, Abderrahim Wakif, K Subbarao
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引用次数: 0

Abstract

The present investigation of the rotating disk system is highly significant due to its many applications, such as in fluid thermal reactors, regulating fluidic systems and fluid stirring. Subject to the upper functions of the rotating disk, the Stefan blowing into the three-dimensional Reiner–Rivlin (R–R) fluid flow by the rotating disk affect the vertical direction. Thermal radiation and Cattaneo–Christov (CC) energy diffusion effects are examined into considering energy transport. The chemical reaction is accommodated in the concentration equation. The convective boundary conditions are considered in the disk surfaces. The ensuing nonlinear systems are determined by applying the Bvp4c routine along with the shooting method. The obtained outcomes are shown graphically with physical justification. The results show that R–R parameters cause a downturn in the radial and tangential velocity profiles as well as the temperature field. The curves of the temperature profile enhance with higher values of radiation parameter. Although this radiation falls onto the fluid surface and increases the temperature of the liquid as hot particles collide with cold particles, the skin friction coefficients decrease with suction. However, the heat and mass transfer rates are enhanced. The current model has been validated by comparing the simplified version of the investigation to a previously published article and a close agreement has been found.

里夫林-莱纳流体通过旋转对流盘时的斯特凡吹袭和化学反应
由于旋转盘系统在流体热反应器、流体系统调节和流体搅拌等方面应用广泛,目前对其进行的研究意义重大。受旋转盘上部功能的限制,由旋转盘吹入三维莱纳-里夫林(R-R)流体流的斯特凡会影响垂直方向。在考虑能量传输时,研究了热辐射和卡塔尼奥-克里斯托夫(CC)能量扩散效应。在浓度方程中考虑了化学反应。圆盘表面考虑了对流边界条件。随后的非线性系统是通过应用 Bvp4c 例程和射击法确定的。得到的结果以图形显示,并附有物理证明。结果表明,R-R 参数会导致径向和切向速度曲线以及温度场下降。温度曲线随着辐射参数值的增大而增强。虽然这种辐射落在流体表面,并在热颗粒与冷颗粒碰撞时提高了液体温度,但表皮摩擦系数会随着吸力的增加而降低。然而,传热和传质速率却得到了提高。通过将研究的简化版本与之前发表的一篇文章进行比较,对当前模型进行了验证,结果发现两者非常接近。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Pramana
Pramana 物理-物理:综合
CiteScore
3.60
自引率
7.10%
发文量
206
审稿时长
3 months
期刊介绍: Pramana - Journal of Physics is a monthly research journal in English published by the Indian Academy of Sciences in collaboration with Indian National Science Academy and Indian Physics Association. The journal publishes refereed papers covering current research in Physics, both original contributions - research papers, brief reports or rapid communications - and invited reviews. Pramana also publishes special issues devoted to advances in specific areas of Physics and proceedings of select high quality conferences.
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