An experimental investigation of the shrouded centrifugal backswept impeller flow field has been conducted at off-design flow using Laser Doppler Velocimeter (LDV) and shaft encoder.

• 利用激光多普勒测速仪(LDV)对后弯闭式离心叶轮内部气流在非设计工况下的流动进行了实验测量。