何延东,刘刚,朱向哲.大功率调速型液力偶合器数值计算与实验[J].农业机械学报,2012,43(8):37-41,93.
He Yandong,Liu Gang,Zhu Xiangzhe.Numerical Calculation and Experiment of High-power Variable Speed Hydrodynamic Coupling[J].Transactions of the Chinese Society for Agricultural Machinery,2012,43(8):37-41,93.
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大功率调速型液力偶合器数值计算与实验   [下载全文]
Numerical Calculation and Experiment of High-power Variable Speed Hydrodynamic Coupling   [Download Pdf][in English]
  
DOI:10.6041/j.issn.1000-1298.2012.08.007
中文关键词:  大功率调速型液力偶合器  计算流体动力学  两相流动  数值计算  实验
基金项目:国家高技术研究发展计划(863计划)资助项目(2007AA05Z256)和辽宁省教育厅资助项目(L2010249)
作者单位
何延东 辽宁石油化工大学 
刘刚 辽宁省农业机械化研究所 
朱向哲 辽宁石油化工大学 
中文摘要:基于三维多相流动理论和计算流体动力学(CFD),采用滑动网格理论对大功率调速型液力偶合器内部气液两相瞬态流动进行数值计算,并基于流场数值解进行液力偶合器的特性预测。由数值计算结果分析偶合器效率降低的原因。对偶合器进行不同工况、不同充液率下的外特性实验,将理论计算与实验结果进行对比,原始特性的计算与实验结果误差在允许范围内,从而验证理论方法和计算的准确性。
He Y  ong  Liu Gang  Zhu Xiangzhe
Liaoning Shihua University;Liaoning Provincial Institute of Agricultural Mechanization;Liaoning Shihua University
Key Words:High-power variable speed hydrodynamic coupling,CFD,Two phase flow, Numerical calculation,Experiment
Abstract:The transient unsteady two phase flow of high-power variable speed hydrodynamic coupling was numerical simulated based on the 3-D multi-phase flow theory and computational fluid dynamics (CFD) by using the sliding mesh method and the characteristics was predicted. The pressure and velocity distribution were analyzed to reveal the flow rule and characteristics of flow field. The reduced efficiency reasons were revealed. The theoretical calculation was compared with the external characteristic experiment under different filling rates. The maximum error was less than 15% between computational result of original characteristics and experiment results, and the correctness of theory method was verified.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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