Grinding fluid flow under a surface grinding wheel is analyzed using hydrodynamic lubrication theory. Considering the effects of permeability of the grinding wheel, a three dimensional Reynolds equation of finite line contact is yielded.

• 根据流体动压润滑理论，分析了平面砂轮磨削时磨削液的流体动压效应，并考虑砂轮渗透度的影响，推得了有限定线接触条件下磨削液三维流动的Reynolds方程。