Computational Fluid Dynamics Simulation of Flow Field over the Flight Deck with Different Types of Hangar

Abstract

　　When helicopter pilots take off and land on the flight deck the safety during the operation might be affceted by the flow field above the flight deck such as the vortex structure cause by the wind passing through the hangar In this research we use the Computational Fluid Dynamics (CFD) in order to simulate the flow field above the flight on the Simple Frigate Shape (SFS) Model with different types of hangar (Base Incline Corner Chamfer) under fourinflow conditions (Headwind Green 10° Green 30° Green 45°) We also compare with other expermint data which use Particle Image Velocimetry (PIV) method in circulating water tank Simulation items include flow speed 2D 3D streamlines vorticity and turbulencr intensity summarize the characteristic of flow structure taking these conclusions as a basic knowledge which can provide such as the informations needed to establish the Ship-Helicopter Operating Limits (SHOL) give pilots a preliminary understanding of the flow field above the flight deck under different condition or even give some concept of the flight deck flow field to the designer when he allocation and design the structure of the hangar in the future

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