基于舰载机起降限制的舰船气流场特性评估方法初探

对具有搭载舰载机能力的舰船而言,其气流场特性的评估取决于对相应舰载机的起降气流条件限制。通过对美国LHA型舰缩比模型的数值建模,结合两种舰载机起降的气流场限制条件对计算结果进行对比分析。在相同定常来流工况下,分别以±15°风向角对该型舰数值模型的两个起降点进行模拟取值,结合直升机和固定翼短距/垂直起落飞机的起降特性和气流限制条件,尝试提出一种评估舰船气流场特性的直观方法,并得出不同甲板气流区域受上层建筑影响的有关结论。

Simplified Evaluation of Ship Airwake Characteristics for Takeoff/Landing of Shipborne Aircraft

An evaluation of the airwake for aircraft takeoff/landing has its limitation on the conditions of ship. This paper described the adoption of LHA scaled model, takeoff/landing of aircrafts and their limitation of airwake etc. Under the same steady flow condition, by simulating the two takeoff/landing points of the scaled model with -＋15~ wind angles, and combining their takeoff/landing characteristics and airwake limitations of helicopters and STOVL aircrafts, it carried out a simplified evaluation of ship airwake characteristics. Conclusions show that different deck airwake areas are effected by the superstructure.