Effect Analysis of the Hangar Rear Edge Curvature on the Ship Airwake

2018 2nd International Conference on Advanced Technologies in Design, Mechanical and Aeronautical Engineering

工业技术;机械制造;航空航天工程

Wang, Jinling^1 ; Jiang, Guangwen^1 ; Wang, Xiaocheng^1

Systems Engineering Research Institute, CSSC, Beijing

100094, China^1

关键词: Curved surfaces;    Effect analysis;    Launch and recoveries;    Pilot workload;    Reynolds average Navier-Stokes;    Turbulence intensity;    Two-equation turbulence models;    Vertical surface;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/408/1/012024/pdf
DOI  :  10.1088/1757-899X/408/1/012024

来源: IOP

【 摘 要 】

In order to examine the effects of hangar rear edge curvature on ship airwake, the SFS2 ship configuration is modified by changing rear vertical surface of hangar into curved surface. Airwake with different configurations subject to free-stream of 25.7m/s at headwind are simulated using commercial CFD solver ANSYS FLUENT, and the traditional Reynolds- average Navier-Stokes k- two equation turbulence model is applied. A very good agreement of experiment results in wind tunnel with predictions from the CFD demonstrate that both the FLUENT code and the meshes generated by ICEM perform well in simulating ship airwake. The comparison of different hangar rear edge curvatures shows that the curvature modifications improved airwake over the flight deck region of SFS2 by reducing mean downwash and turbulence intensity. 90 is the best angle corresponding to SFS2 hangar rear edge curved arc, which will reduce pilot workload during launch and recovery operations.