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仪器网/ 行业应用/ 解决方案/ 用时间分辨PIV,背景来源纹影法(BOS)和红外(IR)方法研究

用时间分辨PIV,背景来源纹影法(BOS)和红外(IR)方法研究

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The active control of laminar and turbulent flows with dynamical actuators is of great scientific and
technological interest in nearly any field of fluid mechanics. On on hand it becomes possible to generate artifical
flow structures whose properties and significance for the turbulent mixing, or their interaction with other flow
structures, can be examined. On the other hand, these devices suppress flow separation on profiles or increase the
performance of flow engines. Today, most of the well established actuator concepts are based on pneumatic and
micro-mechanic basis. However, owing to their limited dynamic range their potential seems to be limited from the
present point of view, see Gad-el-Hak (2001), and also their technical implementation is sometimes difficult. In
the following an optical actuator concept is proposed and examined that allows to excite the flow non-intrusively
with nearly any pulse-width and repetition-rate. 德国LaVision PIV/PLIF粒子成像测速场仪 时间分辨粒子成像测速系统(TR-PIV) Imager sCMOS PIV相机
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