Response surface method‐based hydraulic performance optimization of a single‐stage centrifugal pump

IF 1.7 4区 工程技术 Q3 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS
Durvesh Yadav, Raj Kumar Singh, K. Manjunath
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Abstract

In this article, the response surface approach was employed to enhance the hydraulic performance of the pump at the rated point. Specifically, an approximate link between the design head and efficiency of the single‐stage centrifugal pump and the parameters of the impeller's design was established. The first step in creating a one‐factor experimental design involved selecting significant geometric variables as factors. Decision variables such as the number of blades, flow rate, and rotation were chosen due to their significant impact on hydraulic performance, while head and efficiency were considered as responses. Subsequently, the best‐optimized values for each level of the parameters were identified using response surface analysis and a central composite design. The impeller schemes of the Design‐Expert software were evaluated for head and efficiency using Computational fluid dynamics, and a total of 20 experiments were conducted. The simulated results were then validated with experimental data. Through the analysis of the individual parameters and the approximation model, the ideal parameter combination that increased head and efficiency by 7.90% and 2.06%, respectively, at the rated value was discovered. It is worth noting that in cases of a high rate of flow, the inner flow was also enhanced.
基于响应面法的单级离心泵水力性能优化
本文采用响应面方法来提高泵在额定点的水力性能。具体而言,在单级离心泵的设计扬程和效率与叶轮设计参数之间建立了近似联系。创建单因素实验设计的第一步是选择重要的几何变量作为因素。由于叶片数量、流量和旋转等决策变量对水力性能有重大影响,因此选择了这些变量,而扬程和效率则被视为响应变量。随后,利用响应面分析和中心复合设计确定了每一级参数的最佳优化值。利用计算流体动力学对 Design-Expert 软件的叶轮方案进行了水头和效率评估,共进行了 20 次实验。模拟结果与实验数据进行了验证。通过对单个参数和近似模型的分析,发现了理想的参数组合,在额定值下可将扬程和效率分别提高 7.90% 和 2.06%。值得注意的是,在流速较高的情况下,内部流量也得到了提高。
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
International Journal for Numerical Methods in Fluids
International Journal for Numerical Methods in Fluids 物理-计算机:跨学科应用
CiteScore
3.70
自引率
5.60%
发文量
111
审稿时长
8 months
期刊介绍: The International Journal for Numerical Methods in Fluids publishes refereed papers describing significant developments in computational methods that are applicable to scientific and engineering problems in fluid mechanics, fluid dynamics, micro and bio fluidics, and fluid-structure interaction. Numerical methods for solving ancillary equations, such as transport and advection and diffusion, are also relevant. The Editors encourage contributions in the areas of multi-physics, multi-disciplinary and multi-scale problems involving fluid subsystems, verification and validation, uncertainty quantification, and model reduction. Numerical examples that illustrate the described methods or their accuracy are in general expected. Discussions of papers already in print are also considered. However, papers dealing strictly with applications of existing methods or dealing with areas of research that are not deemed to be cutting edge by the Editors will not be considered for review. The journal publishes full-length papers, which should normally be less than 25 journal pages in length. Two-part papers are discouraged unless considered necessary by the Editors.
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