以每秒高达30000次的采集频率,应用电导探针测量气液两相流中空隙波的传播,对探针信号进行多尺度分析和频谱分析获得空隙波的波速,发现空隙波具有不同的波速并在稳定性曲线所包覆的拇指型区域内呈离散分布,甚至可逾越稳定性曲线.应用高速数字摄像对两相流的相态结构进行了观测,发现空隙波波速的多样性和随机的不稳定性根源于气液两相流复杂的细观非均质形态.
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