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    陈谋志, 秦军, 李伟锋, 刘海峰, 于遵宏. 喷嘴噪声性能的实验研究[J]. 华东理工大学学报(自然科学版), 2005, (4): 524-527.
    引用本文: 陈谋志, 秦军, 李伟锋, 刘海峰, 于遵宏. 喷嘴噪声性能的实验研究[J]. 华东理工大学学报(自然科学版), 2005, (4): 524-527.
    Noise Characteristics of 3-Channel Nozzel[J]. Journal of East China University of Science and Technology, 2005, (4): 524-527.
    Citation: Noise Characteristics of 3-Channel Nozzel[J]. Journal of East China University of Science and Technology, 2005, (4): 524-527.

    喷嘴噪声性能的实验研究

    Noise Characteristics of 3-Channel Nozzel

    • 摘要: 应用麦克风、频谱分析软件等相关工具,研究了三通道喷嘴无水条件下的噪声性能。实验结果表明:随着三通道气流马,赫数逐渐增大,噪声强度随之增大,峰值频率基本不变,但能量变强;随着一通道气流马赫数增大,噪声强度先减小后增大,并且频谱图上出现高频峰,该峰能量逐渐变强;改变一、三通道气体喷口流速比,噪声强度呈现减小、增大、减小的非均匀变化趋势,峰值频率逐渐变大。

       

      Abstract: The noise characteristics of 3-channelusing microphone and spectrum analysis software.nozzle were investigated, in the absence of water,When Ma in channel 3 increased, noise intensity increased monotonously; frequency of the peak remained the same, but its power became stronger. When Ma in channel 1 increased, noise intensity decreased initially but then increased; the high frequency peak appeared, and its power became stronger. Changing the ratio of air velocity in nozzle of channel 1 to channel 3, the noise intensity decreased, then increased, and decreased again~ frequency of peak increased.

       

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