free vortex

A study for calculating rotor loads using free vortex concept

用自由涡系计算旋翼载荷

With different board positions, it is not in the light of free vortex that the through-flow velocity distributes, and the secondary flow velocities have similar distributions.

当两挡板开度变化时，蜗壳流道截面上通流速度的分布不同于自由涡流规律，二次流速度分量分布形态类似。

Four tangential velocity distributions considered are Rankine vortex, forced vortex, free vortex and constant angle vortex.

旋流器出口的四种切向速度分布为：Rankine涡、强迫涡、自由涡和常数角涡。

The gas flow in cyclone is mostly tangential flow, which has a regular velocity field, and the radial flow is minimum. The flow field is mainly composed of forced vortex flow and little free vortex flow.

通过研究看出，卧式旋风筒内气流流动主要是切向流动，径向流动最小，并且切向速度有较好的分布规律，主要是以强制涡区为主，自由涡区很小；