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噪声沸腾现象是发生在超流氦中的一个特殊现象 ,在沸腾过程中伴随着巨大的噪声和剧烈的机械振动 .通过改变加热脉冲时间th 和热流密度q ,在不同的工况下进行了实验研究 .在超流氦浴中使用超导温度传感器对噪声沸腾过程的温度振荡进行了瞬态测量 .实验结果表明噪声沸腾中的温度振荡是由热边界层的传播和(或 )气泡的膨胀所致
Noise Boiling is a special phenomenon that occurs in superfluid helium, accompanied by tremendous noise and severe mechanical vibration during boiling. Experiments were conducted under different operating conditions by varying the heating pulse time th and heat flux q The superconducting temperature sensor was used to measure the temperature oscillation in the process of noise boiling in a superfluid helium bath.The experimental results show that the temperature oscillation in the noise boiling is caused by the propagation of the thermal boundary layer and / To