關鍵字查詢 | 類別:期刊論文 | | 關鍵字:Sound emission of ducted premixed flames

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序號 學年期 教師動態
1 87/2 航太系 陳增源 教授 期刊論文 發佈 Sound emission of ducted premixed flames , [87-2] :Sound emission of ducted premixed flames期刊論文Sound emission of ducted premixed flamesChen, Tzeng-yuan; Chen, Man-ge淡江大學航空太空工程學系London: Elsevier LtdJournal of Sound and Vibration 221(2), pp.221-234Sound emissions of laminar premixed flames stabilized on the outlet plane of a burner located at one end of a rectangular duct were experimentally investigated. Specifically, this research applied the approach of direct acoustic admittance measurement to investigate and elucidate the close relations between sound emission, non-reactive burner acoustic admittance, flame equivalence ratio and combustor length. The admittance data were obtained by directly measuring the amplitudes of velocity and pressure oscillations, and the phase relations between the oscillatory velocity and pressure. Results of this research reveal that flames would hardly induce sound emissions without the “right” acoustic property of the non-reactive burner system. Also, the reactive burner acoustic admittance is dominated
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