方案摘要
方案下载应用领域 | 航空航天 |
检测样本 | 航空 |
检测项目 | |
参考标准 | 暂无 |
采用LaVision公司的ParticleMaster-Shadow系统,以及Artium公司的PDI设备对结冰风洞云模拟中的液滴粒径分布进行了测量。测量能力拓展到过冷大液滴。
The icing wind tunnel (IWT) is one of most important means of compliance testing, providing controlled and repeatable simulations of aircraft in-flight icing encounters for a variety of evaluations and studies. In addition to conventional aerodynamic wind tunnel components, IWT’s must have refrigeration systems with heat exchangers (HXs) to cool the air to controlled temperatures below freezing. These facilities also require a system for spraying nebulised water (Spray Bar System, SBS) into the airstream. A further requirement is careful control of both drop size and concentration to generate an icing cloud in the test chamber. Taking into account the two-phase flow, the aerodynamic line of the icing wind tunnel test
leg is designed to function as a means for producing the desired droplet thermo-kinetic behaviour. The requirement is to better simulate a uniform spatial distribution of water droplets together with velocity and temperature values that are as close as possible to the corresponding conditions of the air flow especially, for large droplet size.
在一个双稳湍流涡旋火焰中,对间歇性动态的时间-频率定位
Particle-laden Taylor-Couette流:高阶转变和径向局部波浪涡旋的证据
7根杆束的流体-结构相互作用:用实验数据对比数值模拟
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