Characteristics of a pulsating round jet ejected from an orifice into a uniform cross flow are investigated experimentally to develop a zero-mass-flow device to control flow. The trajectories of the jet with different initial conditions are found to collapse into a single curve if these are normalized by the frequency and amplitude of the jet, and the cross flow velocity. This means that the disturbance generated by the jet can be hit at an arbitrary position apart from the orifice.
流れ制御のための間欠噴流アクチュエータの開発
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