航空母舰空气尾流的实验研究  

Experimental Study on Aircraft Carrier Air Wakes

作　　者：鲍锋 曾华轮 邹赫 朱睿 刘志荣 

机构地区：[1]厦门大学航空航天学院,福建厦门361005

出　　处：《厦门大学学报（自然科学版）》2017年第5期734-739,共6页Journal of Xiamen University：Natural Science

基　　金：国家自然科学基金(11072206);福建省自然科学基金(2012J01023)

摘　　要：航空母舰的空气尾流对舰载机的起飞、着舰有较大的影响,认清航母尾流对舰载机的干扰原因有助于提高舰载机起降的安全性.实验以"辽宁舰"航母的缩比模型为研究对象,在多功能循环水槽中研究其尾流结构.利用染色液流动显示技术和粒子成像测速技术显示和测量航母的尾流结构随航向角、流速和关键位置的变化.基于模型迎流宽度定义的雷诺数范围为2×10~4~4×10~4.研究表明,舰首滑跃甲板存在上洗气流且两侧产生流向涡,该涡结构对舰载机滑跃起飞时的升力产生影响;舰岛和舰尾后方存在着大量脱落涡,会对舰载机着舰时的气动力产生扰动,增加着舰操纵难度.Aircraft carrier air wake exerts a very important impact on the carrier-based aircraft take-off and landing.Identify the disturbance of the aircraft carrier wakes on the carrier-based aircraft will contribute to improve the safety of the aircraft take-off and landing.Experiment take Liaoning aircraft carrier shrinkage model as the research object,which has similar geometry shape of the Liaoning aircraft carrier,and research on the wake structure of the aircraft carrier model in multifunctional water tunnel.Using the dyeing flow visualization experiment and PIV measurement to measure the wake structure of aircraft carrier model different with heading angles,velocity of flow and the key positions.Based on the definition of the width of model,the scope of Reynolds number is 2×10^4-4×10^4.Results show that there are up washs on the ski jump deck and flow vortex on both sides of the ski jump deck,which have an impact on the lift of carrier-based aircraft.Besides,there are shedding vortices behind the ship island and stern,which will interfere the aerodynamic force of carrier-based aircraft and greatly increase the operating difficulty of landing.

关 键 词：辽宁舰 航母尾流 染色液流动显示 粒子成像测速技术 

分 类 号：V211.76[航空宇航科学与技术—航空宇航推进理论与工程]