PROBLEM TO BE SOLVED: To provide pre-cooler inlet ducts that utilize active flow-control, and systems and methods including the ducts.SOLUTION: The systems include a pre-cooler inlet duct 100 for a jet engine that is configured to receive a pre-cooler air stream 65 and to direct the pre-cooler air stream into a heat exchanger 66. The pre-cooler inlet duct includes a flow-directing surface 140, which defines at least a portion of the pre-cooler inlet duct, and an active flow-control device 150. The active flow-control device is located to modify a boundary layer fluid flow within a boundary layer adjacent to the flow-directing surface to resist separation of the boundary layer from the flow-directing surface when the pre-cooler air stream flows through the pre-cooler inlet duct. The methods include a method of resisting boundary layer separation in the pre-cooler inlet duct by a flow of the pre-cooler air stream across the flow-directing surface, and a method of modifying the boundary layer with the active flow-control device.SELECTED DRAWING: Figure 2

    【課題】アクティブな流れ制御を利用する予冷器吸気ダクト、並びにそのダクトを含むシステム及び方法を提供する。【解決手段】システムは、予冷器気流65を受け、予冷器気流を熱交換器66内に案内するように構成されるジェットエンジン用の予冷器吸気ダクト100を含む。予冷器吸気ダクトは、予冷器吸気ダクトの少なくとも一部を画定する流れ案内表面140と、アクティブな流れ制御デバイス150とを含む。アクティブな流れ制御デバイスは、予冷器気流が予冷器吸気ダクトを通って流れるときに、境界層の流れ案内表面からの分離に抵抗するために、流れ案内表面に隣接する境界層内部の境界層の流体の流れを修正するように配置される。方法は、流れ案内表面を越えて予冷器気流を流すことによって、予冷器吸気ダクトでの境界層分離に抵抗する方法と、アクティブな流れ制御デバイスで境界層を修正する方法とを含む。【選択図】図2


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    Title :

    PRE-COOLER INLET DUCTS THAT UTILIZE ACTIVE FLOW-CONTROL, AND SYSTEMS AND METHODS INCLUDING SAID DUCTS


    Additional title:

    アクティブな流れ制御を利用する予冷器吸気ダクト、並びにそのダクトを含むシステム及び方法


    Contributors:

    Publication date :

    2016-04-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F02K JET-PROPULSION PLANTS , Strahltriebwerke / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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