4-5 燃燒室與渦輪機 Combustor, Turbine and Nozzle скачать в хорошем качестве

4-5 燃燒室與渦輪機 Combustor, Turbine and Nozzle

紹了噴射發動機後端負責能量轉換與產生推力的關鍵組件。 燃燒室 (Combustor)：發動機溫度最高處，將燃料與高壓空氣混合點火，產生極高溫高壓的氣流。 渦輪機 (Turbine)：從燃燒後的高速氣體中提取能量，轉化為旋轉機械能，用以帶動發動機前端的壓縮機。 噴嘴 (Nozzle)：發動機最後一部分，主要功能是將氣體的內能轉化為動能。透過圓錐狀結構讓氣流增速，產生向後的噴射氣流（Jet）以獲得反作用推力。 噪音控制：在民航機實務上，噴嘴常設計成鋸齒狀（Chevrons）以降低噴氣產生的噪音。 Combustor: The hottest section of the engine where fuel and high-pressure air mix and ignite to produce high-energy gas. Turbine: Extracts energy from the high-velocity exhaust to create rotational mechanical power, which drives the compressor at the front. Nozzle: The final stage that converts internal energy into kinetic energy. Its conical shape accelerates the flow, creating a high-speed jet to generate reactive thrust. Noise Reduction: In civil aviation, nozzles often feature sawtooth edges (Chevrons) to mitigate the noise generated by the exhaust jet.