downwash speed

In this thesis,the rolling moment characteristics of canard missies are studied,and theinfluence of downwash of canard was analyzed.

本文讨论了鸭式布局弹箭的滚转气动特性，分析了鸭舵的下洗影响作用。

The stable isotope was used for evaluating washout process in summer at Mingnan Area.

使用稳定同位素方法对闽南夏季云下洗脱过程进行研究；对闽南夏季降水中稳定同位素丰度比进行了测试。

A new configuration of infrared suppressor utilizing nozzle ejector and rotor downwash is presented,relevant experimental and computational study is conducted on the mixing characteristics inside the new infrared suppressor.

在波瓣引射器一次引射掺混后,提出利用旋翼下洗气流对弯曲混合管排气进行二次强迫混合的红外抑制器结构,并对该红外抑制器进行了有关流动混合特性的实验和数值研究,获得了主流和引射气流、下洗气流相互混合过程中,混合管内部及抑制器出口处的温度场和压力场等相关信息,以及表征引射-混合系统总体性能的引射系数等参数。

Utilizing a ground test model,an experimental diagnostic study on the infrared suppressor integrating the exhaust system with the tail part of a helicopter has been performed to investigate the effects of ambient air pumping-mixing and rotor downwash on reducing the exhaust system temperature and diminishing the target infrared signature.

利用地面模拟实验件对排气系统与尾机身一体化红外抑制器模型进行了实验研究,旨在分析引射混合与旋翼下洗对降低排气温度和目标的红外辐射特征的效果。