Industrial pumps . centrifugal , mixed flow and axial pumps . allowable level for mechanical vibrations 工业泵.离心泵混流泵和轴流泵.允许的机械振动级
The main effects on cavitation performance of large - scale mixed flow pump used in a special propulsion system are analysed 摘要分析了用于推进系统的大功率混流泵影响汽蚀特性的主要因素。
Centrifugal , mixed flow and axial pumps - code for hydraulic performance tests - precision class iso 5198 : 1987 ; german version en iso 5198 : 1998 离心泵混流泵和轴流泵.液压性能试验规范.精密级
The cavitation characteristics of mixed flow pump during starting period , relations between cavitation performance and flowrate , rotational speed and impeller parameters were discussed 讨论了启动过程的汽蚀特性以及混流泵汽蚀性能与流量、转速、叶轮参数的关系。
An optimized impeller in a mixed - flow pump , where the head and the efficiency increased by 7 . 43 % and 3 . 37 % respectively , confirmed the validity of this newly proposed method 通过对一台混流泵叶轮进行优化，扬程和效率分别提高了7 . 43 %和3 . 37 % ，从而验证了该方法的实用性。
Prototype observation and model experiment indicate that flows in two channels of the discharge passage of an axial - flow pump and a guide vane mixed - flow pump are unequal to each other , there is flow deviation 摘要原型观测和模型试验都表明，轴流泵和导叶式混流泵双孔出水流道两孔流量不等，存在偏流。
There are valid methods to improve the cavitation performance of the mixed flow pump that is select the best cavitation performance point as design point , reduce the operation speed and adopt effective impeller parameters 选取最佳汽蚀性能工况点为设计工况点，在满足尺寸要求前提下降低转速，采用合理的叶轮参数等手段可有效提高混流泵的汽蚀性能。
The analysis results indicate that the transient performance of pump during starting period decreases evidently under cavitation condition ; cavitation performance of the pump has close relationship with flowrate , rotational speed and impeller parameters 分析结果表明，启动过程中的汽蚀现象使混流泵瞬态性能迅速下降，汽蚀性能与流量、转速、叶轮参数等有密切关系。
Through incision experiment on the impeller of circulating pump times and times , the relation between the size of incision and the capacity and head of the pump was discussed , the law of performance was summarized after the impeller is incised , the existing formula was revised 摘要经过对混流泵叶轮多次切割试验，探讨了叶轮切割量与泵的流量、扬程之间的关系，总结了混流泵叶轮切割后的性能变化规律，进而对现有公式进行了修正。
In the aerodynamic optimization design of turbomachine , the approximation model methods enable to balance the computational cost and accuracy , whose successful applications in centrifugal compressor impeller , diffuser , and mixed - flow pump impeller designs are introduced to show a wide engineering foreground 基于统计学理论提出的近似模型方法有效地平衡了基于计算流体动力学分析的叶轮机械气动优化设计中计算成本和计算精度这一对矛盾，在离心压气机叶片扩压器、叶轮和混流泵叶轮设计等问题中得到了成功应用，展示了广阔的工程应用前景。
