摘要
本文建立的性能预测模型考虑了气相的可压缩性和沿流道的截面面积的变化，介绍了数值模拟的方法和步骤。利用该模型讨论了几何参数和不同操作条件下对过流部件内含气率和静压分布的影响。第一代多相泵实验的结果与预测结果相符。在含气率小于３０％时，二者结果比较一致；在含气率大于 ４０％时，误差加大。
A performance prediction model is established in this paper which taking ac count into gas compressibility and the change of cross section area of flow channel. The steps and method of numerical emulation is discussed. The gas void fraction and static pressure distribution along streamline of selected stream surface within internal flow parts with different geometry parameters at different operating conditions are studied by this model. The comparison of calculated results with experimental data of first generation pump shows that when GVF<0.3 the predicted results agree well with experimental data; when GVF>0.4, the bias is enlarged. Maybe this is because the hydraulic loss distribution is more complex and need further studies.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2000年第2期187-190,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金! 59576041
