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- W2317993404 abstract "Active flow control seeks to control large scale flows by exploiting natural responses triggered by small energy inputs. Preliminary studies have found that the injection of a low frequency (F+ = 1.0) high momentum (c,=l.O%) jet into the flow at the V22 Osprey Tiltrotor aircraft wing can alleviate download during hover operations and thus provide a 20 % increase in payload. Relatively lightweight Synthetic Jets (SJ), also known as zero-net-mass fiux actuators, have been explored as means of efficiently injecting high momentum air into the local aerodynamic flow. Low frequency (less than 100 Hz) SJs present a large displacement challenge, requiring novel actuator configurations. Stacked recurve benders provide an efficient low frequency piston action to drive the synthetic jet. The active element of the actuators were made multilayer piezoelectric polymers. This paper details the development effort including actuator fabrication, SJ development, modeling, prototyping, and experimental analysis. Quasistatic and dynamic SJ models of the stacked recurve actuator driven SJ were used to explore the SJ design space. SJs, which fit in a 1/10 scale V22 flapperon model, were designed, built and tested. In addition, jets designed for a prototype '/4 scale V22 model were built and tested. The model was used to extrapolate the SJ performance of higher energy density electroactive polymer material recurve actpators." @default.
- W2317993404 created "2016-06-24" @default.
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- W2317993404 date "2002-06-24" @default.
- W2317993404 modified "2023-10-14" @default.
- W2317993404 title "Low Frequency (F+=1.0) Multilayer Piezopolymer Synthetic Jets for Active Flow Control" @default.
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- W2317993404 doi "https://doi.org/10.2514/6.2002-2823" @default.
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