楔形夹缝内部液体核态沸腾特性
Hangkong Dongli Xuebao/Journal of Aerospace Power(2004)
Abstract
针对楔形夹缝内部液体核态沸腾状况进行可视化实验研究.实验利用表面平整均匀的铜板作为加热平板,用玻璃作为盖板形成楔形夹缝.实验现象表明沸腾核化现象比较容易在狭缝中相对较大的空间中形成,而在狭缝中相对较小的空间里形成沸腾需要更高的热流密度.实验现象还表明,在同一空间尺度条件处的核化和气泡演化情况基本相同,气泡的生长速率在无量纲参数D≥0.1时受到空间尺度的明显影响.
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Key words
Aerospace propulsion system,Boiling,Bubble dynamics,Nucleation,Wedged gap
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