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大功率調(diào)速型液力偶合器數(shù)值計算與實驗
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國家高技術研究發(fā)展計劃(863計劃)資助項目(2007AA05Z256)和遼寧省教育廳資助項目（L2010249）


Numerical Calculation and Experiment of High-power Variable Speed Hydrodynamic Coupling
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    摘要:

    基于三維多相流動理論和計算流體動力學（CFD），采用滑動網(wǎng)格理論對大功率調(diào)速型液力偶合器內(nèi)部氣液兩相瞬態(tài)流動進行數(shù)值計算，并基于流場數(shù)值解進行液力偶合器的特性預測。由數(shù)值計算結(jié)果分析偶合器效率降低的原因。對偶合器進行不同工況、不同充液率下的外特性實驗，將理論計算與實驗結(jié)果進行對比，原始特性的計算與實驗結(jié)果誤差在允許范圍內(nèi)，從而驗證理論方法和計算的準確性。

    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.

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何延東,劉剛,朱向哲.大功率調(diào)速型液力偶合器數(shù)值計算與實驗[J].農(nóng)業(yè)機械學報,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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  • 在線發(fā)布日期: 2012-07-24
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