The Influence of Frigate Hangar Geometries to The Flow Structures of Helicopter Flight Deck

Abstract

During the landing or taking off procedure on the flight deck of ships a helicopter might be influenced by the vortex structure caused by the wind passing through the hangar To study the flow field in the region of flight deck this research is to test Simple Frigate Shape (SFS) Model by using Particle Image Velocimetry (PIV) in circulating water tank With observing the flow structure of four types of hangar (Base Corner Incline and Chamfer) and analyzing the streamlines flow speed vorticity and turbulence intensity we can approximately summarize the characteristics of flow structure influenced by the airwake of hangar Therefore with taking these conclusions as a basic knowledge we can give pilots several guidelines to determine the flow structure under different conditions Furthermore it also can provide some concepts of flight deck flow field controlling and optimizing when designing the structure and allocation of the hangar in the future

Date of Award	2020
Original language	English
Supervisor	Jeng-Horng Chen (Supervisor)