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首页> 外文期刊>Journal of Fluids Engineering: Transactions of the ASME >Hydraulic Performance of a Mixed-Flow Pump:Unsteady Inviscid Computations and Loss Models
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Hydraulic Performance of a Mixed-Flow Pump:Unsteady Inviscid Computations and Loss Models

机译：混流泵的水力性能：非定常无损计算和损失模型

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摘要

The hydraulic performance of an industral mixed-flow pump is aalyzed using a three-dimensional potential flow model to compute the unsteady flow through the entire pump configuraiton. Subsequently, several additional models that use the potential flow results are employed to assess teh losses. Computed head agrees well with experiments in the range 70 percent-130 percent BEP flow rate. Although the boundary layer displacement in the volute is substantial, its effect on global characteristics is negligible. Computations show that a truly unsteady analysis of the complete impeller and volute is necessary to compute even global performance characteristics; an analysis of an isolated impeller channel and volute with an averaging procedure at the interface is inadequate.
机译：使用三维势流模型分析工业混流泵的水力性能，以计算通过整个泵配置的非恒定流。随后，使用了使用潜在流量结果的其他几个模型来评估损失。计算头与BEP流量在70％-130％范围内的实验非常吻合。尽管蜗壳​​中的边界层位移很大，但其对整体特性的影响可以忽略不计。计算表明，对整个叶轮和蜗壳进行真正不稳定的分析对于计算甚至全球性能特征都是必要的。用接口处的平均程序对孤立的叶轮通道和蜗壳进行分析是不够的。

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