Abbasi Elahe, Saadat Solmaz, Karimi Jashni Ayoub, Shafaei Mohammad Hadi
Department of Civil and Environmental Engineering, School of Engineering, Shiraz University, Shiraz, Fars 7134851156, Iran.
Department of Aerospace Engineering and Energy, School of Mechanical Engineering, Shiraz University, Fars, Iran.
Ultrason Sonochem. 2020 Oct;67:105088. doi: 10.1016/j.ultsonch.2020.105088. Epub 2020 Mar 24.
This research presents a novel comprehensive method for optimizing the design of cavitating slit Venturi for a given cavitation intensity. This method is applicable to any cavitation number and can be used to provide the Venturi geometry that is suitable for a specific application. In this paper, cavitating Venturi design process is represented in seven steps. As an example, for the cavitation number of 0.2, geometrical and operational parameters of the Venturi were determined using the proposed seven steps. During the design process, the Venturi discharge coefficient was calculated using computational fluid dynamics (CFD) simulations. Furthermore, Venturi parameters such as inlet pressure, throat area, width, length, height and divergence angle, were optimized by the combination of CFD and Response Surface Methodology (RSM). In addition to calculating the mentioned optimum parameters, other hydraulic parameters of Venturi including discharge coefficient, flowrate, throat velocity, cavitation volume and length were also determined. Finally, the proposed design method in this study was verified by conducting sets of laboratory experiments.
本研究提出了一种新颖的综合方法，用于在给定空化强度下优化空化狭缝文丘里管的设计。该方法适用于任何空化数，可用于提供适合特定应用的文丘里管几何形状。本文将空化文丘里管的设计过程分为七个步骤。例如，对于空化数为0.2的情况，使用所提出的七个步骤确定了文丘里管的几何和运行参数。在设计过程中，使用计算流体动力学（CFD）模拟计算文丘里管的流量系数。此外，通过CFD与响应面方法（RSM）相结合，对文丘里管的入口压力、喉部面积、宽度、长度、高度和扩散角等参数进行了优化。除了计算上述最佳参数外，还确定了文丘里管的其他水力参数，包括流量系数、流量、喉部速度、空化体积和长度。最后，通过进行一系列实验室实验验证了本研究中提出的设计方法。
