轴流泵设计中应用的最小压力系数标准分析 - 循环水渠案例研究

IF 1.1 4区工程技术 Q4 MECHANICS

Journal of Applied Fluid Mechanics Pub Date : 2024-02-01 DOI:10.47176/jafm.17.02.2095

R. V. C. Ramalho, A. L. A. Mesquita, N. M. Filho

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引用次数: 0

摘要

将轴流泵叶片吸入侧最小压力系数作为设计标准进行分析。Matlab 代码用于提高计算机辅助设计过程的效率和质量。X-Foil 软件可确定叶片轮廓的升力和阻力系数，并应用计算流体动力学模型来验证泵的效率。该模型通过文献中可用的实验数据进行了验证。通过商业软件 Ansys CFX 使用有限体积法求解模型方程。案例研究介绍了如何为大型循环水道设计轴流泵，该水道将用于测试船舶、海军结构和水动力涡轮机。特别关注了泵的气蚀条件。该模型评估了最小压力系数标准和叶片跨度上的压力系数分布，结果表明泵在设计点和变速时的性能令人满意。

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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An Analysis of the Minimum Pressure Coefficient Criterion Applied to the Axial-flow Pump Design – A Case Study for a Circulating Water Channel

An analysis of the minimum pressure coefficient on the suction side of the axial-flow pump blades is presented as a design criterion. A Matlab code is used to improve the computer aided design process efficiency and quality. X-Foil software determines the blade profiles' lift and drag coefficients, and a computational fluid dynamics model is applied to certify the pump efficiency. The model is validated from the available experimental data in the literature. The finite volume method is used through the commercial software Ansys CFX, in order to solve the model equations. A case study is presented to design the axial-flow pump for a large circulating water channel that will be used to test ships, naval structures, and hydrokinetic turbines. Particular attention is given to the pump cavitation conditions. The model evaluates the minimum pressure coefficient criterion and pressure coefficient distribution on the blade span, showing satisfactory performance for the pump at the design point and at variable speed.

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来源期刊

Journal of Applied Fluid Mechanics THERMODYNAMICS-MECHANICS

CiteScore

2.00

自引率

20.00%

发文量

138

审稿时长

>12 weeks

期刊介绍： The Journal of Applied Fluid Mechanics (JAFM) is an international, peer-reviewed journal which covers a wide range of theoretical, numerical and experimental aspects in fluid mechanics. The emphasis is on the applications in different engineering fields rather than on pure mathematical or physical aspects in fluid mechanics. Although many high quality journals pertaining to different aspects of fluid mechanics presently exist, research in the field is rapidly escalating. The motivation for this new fluid mechanics journal is driven by the following points: (1) there is a need to have an e-journal accessible to all fluid mechanics researchers, (2) scientists from third- world countries need a venue that does not incur publication costs, (3) quality papers deserve rapid and fast publication through an efficient peer review process, and (4) an outlet is needed for rapid dissemination of fluid mechanics conferences held in Asian countries. Pertaining to this latter point, there presently exist some excellent conferences devoted to the promotion of fluid mechanics in the region such as the Asian Congress of Fluid Mechanics which began in 1980 and nominally takes place in one of the Asian countries every two years. We hope that the proposed journal provides and additional impetus for promoting applied fluids research and associated activities in this continent. The journal is under the umbrella of the Physics Society of Iran with the collaboration of Isfahan University of Technology (IUT) .