EXPERIMENTAL STUDY ON ALTERNATING MAGNETIC FIELD MAGNETOHYDRODYNAMIC PUMP  

作　　者：PENG Yan ZHAO Ling-zhi SONG Shu-jun SHA Ci-wen LI Ran XU Yu-yu 

机构地区：[1]Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China, [2]PERA Global, Beijing 100026, China [3]Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, China

出　　处：《Journal of Hydrodynamics》2008年第5期591-595,共5页水动力学研究与进展B辑（英文版）

基　　金：the National Natural Science Foundation of China (Grant No. 50277037).

摘　　要：An experimental apparatus to investigate AC MHD pump was established, which mainly consists of a rotary permanent magnet with 4 poles an annular channel, a motor, a shaft and a platform. The magnet generates a field similar to sinusoid with the maximum of 0.9 T in the channel when it is rotated tip by the motor to simulate an AC magnetic field. This moving magnetic field acts on the conductive fluid in the channel, and produces an electromagnetic force to move the fluid in the same direction as that of the magnet rotating. Experiments were carried out to investigate the performance of the pump. Flow velocity in the annular channel was measured for different conduclivities and rotating speeds of the magnet. The results show that the flow rate and pressure increase as the magnetic field strength, fluid conductivity and frequency of the magnetic field increase.An experimental apparatus to investigate AC MHD pump was established, which mainly consists of a rotary permanent magnet with 4 poles an annular channel, a motor, a shaft and a platform. The magnet generates a field similar to sinusoid with the maximum of 0.9 T in the channel when it is rotated tip by the motor to simulate an AC magnetic field. This moving magnetic field acts on the conductive fluid in the channel, and produces an electromagnetic force to move the fluid in the same direction as that of the magnet rotating. Experiments were carried out to investigate the performance of the pump. Flow velocity in the annular channel was measured for different conduclivities and rotating speeds of the magnet. The results show that the flow rate and pressure increase as the magnetic field strength, fluid conductivity and frequency of the magnetic field increase.

关 键 词：AC MHD pump rotary permanent magnet experimental study 

分 类 号：TV13[水利工程—水力学及河流动力学]