Numerical Investigation on Influence of Engine Exhaust on Flight Operation of Shipboard Helicopter / 船體主機煙流排放對直升機起降安全影響之數值模擬計算

碩士 / 國防大學理工學院 / 造船及海洋工程碩士班 / 99 / The exhausted gases from ships upper smoke are corrosive. They will erode and pollute the equipments on the deck, harm the people’s health on the ship deck, even threat the flight crew’s safety. So, predicting the plume trajectory is necessary and helpful. The factors influent the plume flow are numerous and complicated, such as wind velocity, exhausted gases velocity from the plume, the plume temperature, the plume height, the front structures, and so on, all of them will affect the gases flow. For preventing the gases create damage, we need to make design to change its path for decreasing the possibility to hurt the people and machine, the more important is to ensure the flight crew’s safety. This paper will use CFD(Computational Fluid Dynamics) to simulate the ship plume flow and helicopter’s motion, and will analysis the Perry Class vessel and the helicopter S70-C. The purpose is to discuss the influent from superstructures, the shape of the plume, the wind deflectors, and the helicopter’s motion. In the helicopters part, we will use the sliding mesh technique to simulate the flow when the helicopter is hovering, and establish the ship model to provide the ship design and development.

Identiferoai:union.ndltd.org:TW/099CCIT0345003
Date January 2011
CreatorsSu, Yinyi, 蘇殷逸
ContributorsLiu, Tsunglung, Miao, Jrming, 劉宗龍, 苗志銘
Source SetsNational Digital Library of Theses and Dissertations in Taiwan
Languagezh-TW
Detected LanguageEnglish
Type學位論文 ; thesis
Format91

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