A Simple Analytical Model for Head Estimation of Noncavitating Inducers With Arbitrary Shape
A Simple Analytical Model for Head Estimation of Noncavitating Inducers With Arbitrary Shape
复制标题
任意形状非空化导流器头部估计的简单分析模型
DOI：
10.1115/1.4046188
复制
发表时间：
--
影响因子：
2
通讯作者：
M. Böhle
中科院分区：
文献类型：
--
作者：
M. Mohr;B. Gwiasda;M. Böhle
虽然在离心泵上应用诱导体的主要目的是提高吸力性能，最终需要判断诱导体与主叶轮的组合扬程，但在设计初期，对诱导体单独提供的扬程和流量特性进行估计是有帮助的。有了这些知识，就可以改进诱导轮和泵叶轮的匹配，并且可以在初始设计阶段检测到主要由于诱导轮的应用而导致的工作范围的限制。一种已经发表的方法。， 2011，“非空化诱导器头部曲线”，流体工程学报。， 133(2), p. 024501.)，这仅限于应用于圆柱形毂和导流罩的诱导，扩展到工作与任意形状的诱导几何形状。本文详细讨论了性能评估的方法及其实现。利用所描述的方法，分析了基于公开文献中可用的通用指南的四种不同设计。预测的头部曲线与实验和计算结果进行了比较，这些结果是作者早期研究的一部分。尽管该方法简单，但可以观察到头部估计与实验和数值数据的良好一致性。这表明损耗模型不仅适用于圆柱形诱导体，也适用于任意形状的诱导体。对出口条件的研究表明，解析流动模型仅能粗略地反映出诱导体出口的模拟流动分布。
Although the increase of suction performance is the primary objective when applying inducers to centrifugal pumps and the combined head of inducer and main impeller is finally to be judged, it is helpful for the designer to estimate the head and flow characteristics provided by the inducer alone in the early design stage. With this knowledge, the matching of inducer and pump impeller can possibly be improved and the limiting of operational range that is essentially due to the application of the inducer can be detected in the initial design phase. An already published method (Li, W.-G., 2011, “Head Curve of Noncavitating Inducer,” ASME J. Fluids Eng., 133(2), p. 024501.), which was limited to the application on inducers with cylindrical hub and shroud, is extended to work with arbitrary-shaped inducer geometries. This article discusses the method of performance estimation and its implementation in detail. Four different designs based on common guidelines available in the open literature are analyzed with the help of the method described. The predicted head curves are compared to experimental and computational results obtained as part of an earlier study by the authors. Despite the simplicity of the method, good agreement of the head estimations with the experimental and numerical data can be observed. This indicates that the loss model seems to be applicable not only to cylindrical inducers but also to arbitrary-shaped inducers. Investigations of the exit conditions show that the analytical flow model only roughly represents the simulated flow distribution at the inducer outlet.
登录
查看更多内容
影响因子：
2
作者：
B. Gwiasda;M. Mohr;M. Böhle
通讯作者：
M. Böhle
涡轮机械性能分析
DOI：
--
发表时间：
1996
期刊：
影响因子：
--
作者：
R. Lewis
通讯作者：
R. Lewis
DOI：
--
发表时间：
2001
期刊：
--
影响因子：
--
作者：
D. Japikse
通讯作者：
D. Japikse
影响因子：
2
作者：
B. Lakshminarayana
通讯作者：
B. Lakshminarayana
平板螺旋诱导轮的整体性能。
DOI：
--
发表时间：
1992
期刊：
影响因子：
--
作者：
Y. Kita;Kazuhiro Furusho;Takahiro Yoshida;Koji Hirose;Kyoji Yamamoto
通讯作者：
Kyoji Yamamoto