Maxwell流体在旋转和拉伸系统中的传输:转子-定子-旋转圆盘反应器的应用

IF 2.7 Q3 NANOSCIENCE & NANOTECHNOLOGY Journal of Nanofluids Pub Date : 2023-04-01 DOI:10.1166/jon.2023.2007
A. Negi, B. Kumar, Ashok Kumar, Prachi, A. Singhal, A. Ray, A. Chamkha
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引用次数: 0

摘要

我们建立了一个数学模型,并获得了非牛顿麦克斯韦流体在具有旋转和拉伸速度的两个圆盘之间运动的数值解,该圆盘具有对流边界约束、多孔介质和热辐射。到目前为止,还没有讨论具有特定边界约束的麦克斯韦流体流动模型。所提出的模型在发电、核能发电厂、天体物理流、太空飞行器、地热提取和旋转圆盘反应堆中有很多应用。Von-Karman相似性方法用于求解,并对求解结果进行了验证。利用Mathematica软件中基于有限差分法(FDM)的ND求解命令进行数值求解。详细讨论了磁场、多孔介质、辐射参数、德博拉数、普朗特数和雷诺数对表面摩擦、传热、流动和温度场的影响。由于介质中的空隙率很大,与径向速度剖面的其他参数相比,孔隙度参数显示出独特的趋势。在两个盘附近都有提高径向速度的趋势,但在系统的中部,孔隙度参数显著滞后了径向速度。
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The Transportation of Maxwell Fluid in the Rotating and Stretching System: Rotor-Stator Spinning Disc Reactor Applications
We have developed a mathematical model and obtained a numerical solution for the motion of a non-Newtonian Maxwell fluid between two disks having rotation and stretching velocity with convective boundary constraints, porous medium and thermal radiation. The present Maxwell fluid flow model with specified boundary constraints is not discussed so far. The proposed model has a lot of applications in electrical power generation, nuclear energy plants, astrophysical flows, space vehicles, geothermal extractions, and spinning disc reactor. The Von Karman similarity approach is used for the solution and validation of the solution is also provided. The solution is obtained numerically with finite difference method (FDM) based ND-solve command in Mathematica software. The effects of magnetic field, porous medium, radiation parameter, Deborah number, Prandtl number, and Reynolds number on skin friction, heat transfer, flow and temperature fields are discussed in detail. Due to the significant void fraction in the medium, porosity parameter shows unique trend compared to other parameters for the radial velocity profile. It has tendency to enhance the radial velocity near both the disc but in the middle part of system, porosity parameter retards radial velocity significantly.
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来源期刊
Journal of Nanofluids
Journal of Nanofluids NANOSCIENCE & NANOTECHNOLOGY-
自引率
14.60%
发文量
89
期刊介绍: Journal of Nanofluids (JON) is an international multidisciplinary peer-reviewed journal covering a wide range of research topics in the field of nanofluids and fluid science. It is an ideal and unique reference source for scientists and engineers working in this important and emerging research field of science, engineering and technology. The journal publishes full research papers, review articles with author''s photo and short biography, and communications of important new findings encompassing the fundamental and applied research in all aspects of science and engineering of nanofluids and fluid science related developing technologies.
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