涡旋管

涡旋管内强旋湍流气固两相流的数值模拟

Simulation of strongly swirling gas-particle turbulent flows in a vortex tube

涡旋管性能的数值模拟研究。

Numerical simulation research on the performance of the vortex tube .

大多数的直升机涡旋管具有长径比大、阻力系数较高、效率高的特点。

Most vortex tubes of the helicopters have the following characteristics : big length-diameter ratio , large resistance coefficient and high efficiency .

本文介绍了直升机发动机进气防砂装置核心元件&涡旋管的砂尘分离效率计算方法。

This paper mostly introduces a method for computing dust separation efficiency of the vortex tube in the engine air particle separator of helicopter .

涡旋管式进气滤清器是一种轴流导叶式旋风分离器，它是一种相对较新型的轴流旋风分离器，主要用于直升机的进气防护。

Vortex tube air intake filter is a kind of axial-flow cyclone separator with guide blades , a relatively new type , which is mainly utilized for the inlet protection of the helicopter .

采用涡旋管排沙，可使底层含沙量大的水流进入涡旋管后形成强大的涡旋流，使泄量和挟沙能力增大，避免了泥沙的滞留淤积。

Using vortex pipe to discharge sediment can avoid sediment accumulation , because the bottom flow with high concentration of sediment forms strong whirl after it enters the vortex pipe , increasing discharge capacity and sediment-carrying capacity .

锥腔式涡旋加捻管的实践与初步认识

Practice and preliminary cognition of tapered cavity vortex twist tube

模拟结果得到了一些流场的特征，如涡旋、狭管效应、垂直回流涡旋等。

Some characteristic flows , such as the flow eddy , channeling flow , and vertical recirculation vortex were simulated .