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首页> 美国政府科技报告 >Study on Vortex Flow Control on Inlet Distortion in the Re-Engined 727-100 CenterInlet Duct Using Computational Fluid Dynamics
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Study on Vortex Flow Control on Inlet Distortion in the Re-Engined 727-100 CenterInlet Duct Using Computational Fluid Dynamics

机译：利用计算流体动力学研究再加工727-100中心进气道进气道畸变的涡流控制

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Computational fluid dynamics was used to investigate the management of inletdistortion by the introduction of discrete vorticity sources at selected locations in the inlet for the purpose of controlling secondary flow. These sources of vorticity were introduced by means of vortex generators. A series of design observations were made concerning the importance of various vortex generator design parameters in minimizing engine face circumferential distortion. The study showed that vortex strength, generator scale, and secondary flow field structure have a complicated and interrelated influence on the engine face distortion, over and above the initial geometry and arrangement of the generators. The installed vortex generator performance was found to be a function of three categories of variables: the inflow conditions, the aerodynamic characteristics associated with the inlet duct, and the design parameters related to the geometry, arrangement, and placement of the vortex generators within the outlet duct itself.

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