free-air tunnel的意思|示意

This turbulence caused the flow pattern in the tunnel to be similar to the flow pattern in free air at a higher Reynolds number.

这种紊流使风洞内的流谱与在较高的雷诺数下自由气流中的流谱相似。

Once there, he would cling to the handrail until reaching the lower steps that the warmer tunnel air kept free of ice.

一旦出现，他会直到达到下的台阶，温暖的隧道空气保持无冰抱扶手。

Once there, he would cling to the handrail until he reached the lower steps that the warmer tunnel air kept ice-free.

一到那儿，他便手抓扶手一直走到底下的台阶时才放开手，那里通道的空气暖和些，地面上结冰。

About the experiment, these experiments were conducted in the free stream wind tunnel, and vitiated air heater was used to simulate the high altitude flow condition.

本文试验在自由射流风洞中进行，利用空气加热器模拟高空飞行条件。

The study of water-air two-phase flow in long-distance free flow tunnel is of great significance to the conveyance capacity and operation safety of water diversion project.

长距离无压引水隧洞水气两相流的研究对于引水工程过流能力及运行安全具有重要的理论意义及指导作用。