Study on Performance of One High Speed Liquid Hydrogen Submerged Pump

With the development of rocket and civil liquid hydrogen, the demand for high-speed liquid hydrogen pump as the function of circulation or transfer is growing. This paper completes the design and modeling of a high-speed liquid hydrogen pump. The performance of the integrated impeller included the inducer is analyzed based on CFD methods. The head, power and efficiency of the cryogenic pump under the different mass flow rates are obtained. The changes of internal flow field and cavitation performance of the impeller are simulated and analyzed. These results provide theoretical data for the future cryogenic pump experimental test system.