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首页> 外文期刊>Journal of Fluids Engineering: Transactions of the ASME >Parametric Design of a Waterjet Pump by Means of Inverse Design, CFD Calculations and Experimental Analyses
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Parametric Design of a Waterjet Pump by Means of Inverse Design, CFD Calculations and Experimental Analyses

机译：通过逆向设计，CFD计算和实验分析对喷水泵进行参数化设计

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The present paper describes the parametric design of a mixed-flow water-jet pump. The pump impeller and diffuser geometries were parameterized by means of an inverse design method, while CFD analyses were performed to assess the hydrodynamic and suction performance of the different design configurations that were investigated. An initial pump design was first generated and used as baseline for the parametric study. The effect of several design parameters was then analyzed in order to determine their effect on the pump performance. The use of a blade parameterization, based on inverse design, led to a major advantage in this study, because the three-dimensional blade shape is described by means of hydrodynamic parameters, such as blade loading, which has a direct impact on the hydrodynamic flow field. On the basis of this study, an optimal configuration was designed with the aim of maximizing the pump suction performance, while at the same time, guaranteeing a high level of hydrodynamic efficiency, together with the required mechanical and vibrational constraints. The final design was experimentally tested, and the good agreement between numerical predictions and experimental results validated the design process. This paper highlights the contrasting requirements in the pump design in order to achieve high hydrodynamic efficiency or good cavitation performance. The parametric study allowed us to determine design guidelines in order to find the optimal compromise in the pump design, in cases where both a high level of efficiency and suction performance must simultaneously be achieved. The design know-how developed in this study is based on flow field analyses and on hydrodynamic design parameters. It has therefore a general validity and can be used for similar design applications.
机译：本文介绍了一种混流喷水泵的参数设计。通过逆向设计方法对泵的叶轮和扩压器的几何形状进行参数化，同时进行CFD分析以评估所研究的不同设计构型的流体动力和吸力性能。首先生成初始泵设计，并将其用作参数研究的基准。然后分析了几个设计参数的影响，以确定它们对泵性能的影响。基于逆向设计的叶片参数化的使用带来了本项研究的主要优势，因为三维叶片形状是通过诸如叶片载荷之类的流体力学参数来描述的，这直接影响流体力学流量领域。在这项研究的基础上，设计了一种最佳配置，目的是最大程度地提高泵的吸入性能，同时确保高水平的流体动力学效率以及所需的机械和振动约束。最终设计经过实验测试，数值预测与实验结果之间的良好一致性验证了设计过程。本文强调了在泵设计中要达到高流体动力学效率或良好的气蚀性能的不同要求。参数研究使我们能够确定设计准则，以便在必须同时实现高效率和抽吸性能的情况下找到泵设计中的最佳折衷方案。本研究中开发的设计知识基于流场分析和流体动力学设计参数。因此，它具有一般有效性，可用于类似的设计应用程序。

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