An Experimental Study of the Special Type Resonance Tube

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  • 特異形共鳴管に関する実験的研究
  • トクイケイ キョウメイカン ニ カンスル ジッケンテキ ケンキュウ

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An experimental study of the special type resonance tube inclining by an angle of 30° to 50° with respect to the nozzle axis has been conducted here.<BR>The gas within the tube is excited to intense periodic oscillations and the gas temperature at the closed tube end reaches some 150°C. The mechanism of the oscillation excitation has been found to be the periodic deflection of the supersonic jet caused by the collision of the jet with its swirl flow at the open tube end.<BR>Furthermore, not only several relationships between gas temperature, geometrical parameters of the tube, nozzle inlet pressure and inflow angle, but also distributions of gas temperature, wall pressure and high-intensity sound radiation are presented in detail.

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