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17 results on '"Fu, Ying-Jie"'

14. Cloning and characterization of a novel intracellular protein p48.2 that negatively regulates cell cycle progression

Author

Yang, Fan, primary, Xu, Yu-Ping, additional, Li, Jian, additional, Duan, Su-Su, additional, Fu, Ying-Jie, additional, Zhang, Yun, additional, Zhao, Yan, additional, Qiao, Wen-Tao, additional, Chen, Qi-Min, additional, Geng, Yun-Qi, additional, Che, Chang-Yan, additional, Cao, Ying-Li, additional, Wang, Ying, additional, Zhang, Lei, additional, Long, Lin, additional, He, Jie, additional, Cui, Quan-Cai, additional, Chen, Shu-Chang, additional, Wang, Shu-Hui, additional, and Liu, Li, additional

Published
2009
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16. Numerical simulation of gas-droplet two-phase flow field in nozzle.

Author

FU Ying-jie, WEI Ying-jie, ZHANG Jia-zhong, and DONG Lei

Subjects
COMPUTER simulation, MATHEMATICAL models, TWO-phase flow, FLUID dynamics, COAL gas, NOZZLES
Abstract

Based on two-fluid model, the gas-droplet flows in nozzle were studied numerically using variable step Runge-Kutta scheme. Heat interaction between the two phases was introduced in the model. The characters of subsonic and supersonic flows were analyzed, and the impacts of droplet size and initial void fraction on the flow field were investigated. Simulation results show that the liquid velocity increases more slowly compared with the gas velocity. With the decreasing droplet size, the exit liquid velocity increases, but the gas velocity decreases. Both gas and liquid velocities increase with the increasing initial void fraction. For the supersonic flow, the Mach number at the throat is less than 1, and the throat area decreases with the increasing initial void fraction and droplet size. The results are useful for the investigation on the performance of mist jet propulsion system. [ABSTRACT FROM AUTHOR]

Published
2010

17. Numerical study on performance of bubbly water ramjet engine.

Author

FU Ying-jie, WEI Ying-jie, ZHANG Jia-zhong, and DONG Lei

Subjects
JET propulsion, NOZZLES, MATHEMATICAL models, BUBBLES, JET engines, FLUID dynamics
Abstract

To predict the performance of bubbly water ramjet propulsion, the physical processes occurring in the diffuser, mixing chamber and nozzle were analyzed. The mathematical models were obtained separately under the restrictions of certain simplifying assumptions. The bubbly nozzle flow was calculated with two-fluid model and variable step-size Runge-Kutta scheme. The influence of area ratios (mixing chamber to inlet area, Am/Ai), inlet area Ai, air mass flow rate, vessel speed, initial bubble radii and half nozzle converging angle on the thrust and efficiency was investigated by comparing the simulation results. It is indicated that bubbly water ramjet propulsion is more effective for bigger area ratios Am/Ai and bigger inlet area Ai. With the increasing air mass flow rate and vessel speed, the thrust increases, but the efficiency decreases. The increase in half nozzle converging angle and initial bubble radii reduces the ramjet thrust and propulsion efficiency. The results are useful for further investigation of bubbly water ramjet engine. [ABSTRACT FROM AUTHOR]

Published
2010

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