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首页> 外文期刊>International Journal of Heat and Mass Transfer >Application of CFD to model oil-air flow in a grooved two-disc system
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Application of CFD to model oil-air flow in a grooved two-disc system

机译：CFD在带槽双盘系统中模拟油气流动的应用

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摘要

The flow field of an open grooved two-disc system was studied. The system includes a rotating finite disc and a stationary finite disc. The rotating disc has radial grooves. The numerical results for the air-oil two-phase flow inside the open grooved two-disc system calculated by the CFD code FLUENT were proposed. The results are discussed and compared with the published test results. The results indicate that the groove affects the transitional characteristics from a single-phase flow to an air-oil two-phase flow of the flow field. In the same flow area, the radial oil flow coefficient is enhanced with a larger groove number. The oil mainly discharges through the groove and the air flows into the non-grooved area from the upstream side of the groove. The effects of the angular velocity on the oil volume fraction and the drag torque become greater when the disc is grooved. It is weakened in the high-velocity operations. The drag torque can be reduced by increasing the groove number in the same flow area. The axial force applied on the disc is gradually decreased with the increase of the angular velocity and becomes close to zero finally. The increase of the groove number reduces the maximum axial force. The results can be used for the optimisation of the Tesla pump and wet clutch.
机译：研究了开槽两盘系统的流场。该系统包括旋转有限盘和固定有限盘。旋转盘具有径向凹槽。提出了用CFD代码FLUENT计算出的开槽双盘系统内部的气油两相流动的数值结果。对结果进行了讨论，并与已发布的测试结果进行了比较。结果表明，沟槽影响了流场从单相流到气油两相流的过渡特性。在相同的流通面积下，径向油的流动系数随着槽数的增加而增加。油主要通过凹槽排出，空气从凹槽的上游侧流入非凹槽区域。当对圆盘开槽时，角速度对机油体积分数和拖曳扭矩的影响变得更大。它在高速运行中被削弱。可以通过增加相同流动区域中的凹槽数量来减小阻力转矩。随着角速度的增加，施加在光盘上的轴向力逐渐减小，并最终接近于零。凹槽数量的增加会减小最大轴向力。结果可用于优化Tesla泵和湿式离合器。

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  • 来源
  • 作者

    Wei Wu; Zhao Xiong; Jibin Hu; Shihua Yuan;

  • 作者单位

    National Key laboratory of Vehicular Transmission, Beijing Institute of Technology, Beijing 100081, PR China,Room 412, Building 9, Beijing Institute of Technology, Beijing 100081, PR China;

    National Key laboratory of Vehicular Transmission, Beijing Institute of Technology, Beijing 100081, PR China;

    National Key laboratory of Vehicular Transmission, Beijing Institute of Technology, Beijing 100081, PR China;

    National Key laboratory of Vehicular Transmission, Beijing Institute of Technology, Beijing 100081, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Rotating disc; Rotor-stator discs; Two-phase flow; Drag torque; Wet clutch; Tesla pump;

    机译：转盘;转子-定子盘;两相流;拖动扭矩;湿离合器;特斯拉泵;

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