中文摘要：

根据Navier—Stokes方程和流体流动的连续性方程，建立了砂轮／工件楔形接触区流体速度场的数学模型并进行仿真。结果表明，流体速度随砂轮速度的提高而增加，在砂轮宽度方向除在砂轮边缘产生突起外，流体速度分布规律相同；对砂轮与工件之间楔形区域形成的流体速度场进行了实验研究，实验结果表明，依据Navier—Stokes方程和流体流动的连续性方程建立的速度场理论模型与实验结果吻合，理论模型能很好地预测接触区流体速度场分布。

英文摘要：

The velocity field model of wedge - like zone between the wheel and the workpiece was established, based on Navier- Stokes and continuous equation. The emulation results show that the fluid speed was proportion to the grinding wheel velocity, and the peak velocity was generated just in the minimum clearance region in which high speed gradient occurred. It can also be concluded that the velocity distribution was uniform in the direction of width of wheel except at the edge of wheel in which the fluid hydrodynamic pressure existed side- leakage. The fluid speed at wedge -like zone between the wheel and the part was investigated experimentally. The experimental results show that the theoretical model was agreement with the experimental results and the model can well forecast the fluid velocity distribution at the contact zone between the grinding wheel and the workpiece.