摘要
舰载直升机是登陆舰实现"垂直登陆"的主要武器,研究舰面流场特性对直升机安全性能与操纵性都有重要意义。建立了某型登陆舰的三维模型,以风向角为30°,风速为15m/s的流场为例,通过数值仿真得到了飞行甲板上方的气流分布,经分析机库陡壁效应引起的下冲气流分量在机库后方形成了涡流区,在直升机的起降过程中应避免通过该涡流区,以保障直升机的安全起降、平稳飞行。
Shipboard helicopter is an important vertical landing weapon for landing ship. Research on flight deck airflow is of great significance to the control and safety of the helicopter. With three-dimensional model of a certain landing ship established, the airflow distributions in flight deck were calculated by simulation in the condition of wind angle 30°and speed 15 m/s, the analysis of which showed that the downwash from han- gar steep face made the vortex area behind the hangar. The helicopter should avoid this area when taking off and landing for the safety and steady flight.
出处
《海军航空工程学院学报》
2013年第4期389-393,共5页
Journal of Naval Aeronautical and Astronautical University
关键词
舰面流场
登陆舰
舰面起降
数值仿真
flight deck airflow
landing ship
take off and landing from warship
numerical simulation
