1.The velocity, temperature, pressure, and Mach number are analyzed according to the simulation result and the difference between vane diffuser 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。
2.Abstract: in this paper, set the three model stages with different flow coefficient as the research subject, the inlet of vaneless diffuser is analyzed in detail.
摘要：以三个不同流量系数的模型级为研究对象，对其无叶扩压器进口部分进行了详细分析。
3.Finally the influences of geometric parameter on the efficiency of vaneless diffuser are expounded and the theoretical clue and suggestion for the design of rotational vaneless diffuser are proposed.
文中还分析了各几何参数对无叶扩压器效率的影响，从而提出旋转扩压器的设想及理论依据。
4.The results show that the computed results of the flow within the vaneless diffuser was agreed with the available experimental data.
结果表明：无叶扩压器内部流动的计算值与实验值相吻合。
5.These diffusers include vaneless diffuser, vaned diffuser, low solidity diffuser and half-guide-vanes diffuser.
采用的扩压器包括无叶扩压器、叶片扩压器、低稠度扩压器和半高导叶扩压器。
6.A method is proposed to calculated the incompressible three-dimensional turbulent boundary layer on both wall surfaces of vaneless diffusers.
提出了一种计算无叶扩压器两壁面上不可压缩三元紊流附面层的方法。