3D simulation of incompressible flow a rounda rotating turbulator: Effect of rotational and direction speed

IF 0.8 Q4 THERMODYNAMICS

Archives of Thermodynamics Pub Date : 2023-08-02 DOI:10.24425/ather.2023.146562

Elhadi Zoubai, H. Laidoudi, Ismail Tlanbout, D. Makinde

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Abstract

This paper presents new results for the dynamic behaviour of ﬂuid around a rotating turbulator in a channel. The turbulator has a pro-peller form which is placed inside a ﬂat channel. The research was carried out using 3D numerical simulation. The rationale of the experiment was as follows: we put a propeller-turbulator inside a ﬂat channel, and then we insert a water ﬂow inside the channel. The turbulator rotates at a constant and uniform speed. The main points studied here are the eﬀect of the presence of turbulator and its rotational direction on the ﬂow behaviour behind the turbulator. The results showed that the behaviour of ﬂow behind the turbulator is mainly related to the direction of turbulator rotating. Also, the studied parameters aﬀect coeﬃcients of drag force and power number. For example, when the turbulator rotates in the positive direction, the drag coeﬃcient decreases in terms of rotational speed of the turbulator, while the drag coeﬃcient increases in terms of rotational speed when the turbulator rotates in the negative direction.

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圆形旋转紊流器不可压缩流动的三维模拟:旋转速度和方向速度的影响

本文给出了通道中旋转湍流器周围流体动力学行为的新结果。紊流器具有放置在平坦通道内的亲剥形式。研究采用三维数值模拟方法。实验的基本原理是:我们在一个平坦的通道内放置一个螺旋桨湍流器，然后在通道内插入水流。紊流器以恒定匀速旋转。本文研究的重点是紊流器的存在及其旋转方向对紊流器后流动特性的影响。结果表明，紊流器后流动特性主要与紊流器旋转方向有关。研究了各参数对阻力系数和功率数的影响。例如，当扰流器向正方向旋转时，阻力系数随扰流器的转速而减小，而当扰流器向负方向旋转时，阻力系数随扰流器的转速而增大。

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

Archives of Thermodynamics THERMODYNAMICS-

CiteScore

1.80

自引率

22.20%

发文量

期刊介绍： The aim of the Archives of Thermodynamics is to disseminate knowledge between scientists and engineers interested in thermodynamics and heat transfer and to provide a forum for original research conducted in Central and Eastern Europe, as well as all over the world. The journal encompass all aspect of the field, ranging from classical thermodynamics, through conduction heat transfer to thermodynamic aspects of multiphase flow. Both theoretical and applied contributions are welcome. Only original papers written in English are consider for publication.