The approximate analytical solution of the velocity distribution in the side gap of the counter-rotating twin screw extruder is obtained by means of the generalized Newtonian viscosity.
采用广义牛顿粘度公式，得到了振动力场作用下的异向双螺杆挤出机螺棱侧间隙内的速度分布近似解析解。
2
And this is just a Newtonian expression of momentum, the product of the mass of the electron times its instant velocity.
这只是牛顿学上关于动量的表达，用电子质量，乘以瞬时速度。
3
The effect of rolling motion on the flowing velocity of Newtonian fluids and Non-Newtonian fluids is analyzed. The variation of peak velocity and velocity gradient in the wall is also investigated.