It is found that vanediffuser restrains the influence of the volute on the impeller.
发现了叶片扩压器对遏制蜗壳对叶轮内流场的影响有明显的作用。
2
The velocity, temperature, pressure, and Mach number are analyzed according to the simulation result and the difference between vanediffuser and vaneless diffuser is studied.
由计算结果分析了叶轮和无叶扩压器内部的速度、压力、马赫数分布，并和叶片扩压器进行了对比。
3
The perdicted results also can provide useful information for the matching between the impeller and vanediffuser in design.