黄莹,高璞珍,徐鹏,王超群,钱旭梁

• 1:哈尔滨工程大学 核安全与仿真技术国防重点学科实验室，黑龙江 哈尔滨 150001

摘要(Abstract)：

为了研究双孔喷气工况下，孔径及孔间距对气泡的影响规律，通过可视化实验方法研究双孔壁面逸出气泡的运动特性，对不同孔径及孔间距情况下的两列气泡的运动轨迹、气泡脱离尺寸、气泡速度进行分析，并与单孔气泡生成及运动特性进行对比，得到孔口间距及孔口直径对气泡的影响规律。实验结果表明，当两列气泡并排上升时，两气泡之间距离并不会保持恒定，而是会出现相互靠近—远离—再靠近的循环震荡过程，且孔间距越小，气泡上升时所伴随的左右震荡的振幅越大；在孔径及气体流量均相同时，孔间距越小，脱离尺寸越小，气泡最终的稳定速度越小；当孔间距及气体流量均相同时，孔径越大，气泡的脱离尺寸越大，脱离尺寸与单孔情况的差值越大，气泡最终的稳定速度越大。

关键词(KeyWords)： 气泡;两相流;可视化实验;气泡轨迹;双孔出泡

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（11605033）；核能安全劳氏基金项目。

作者(Author): 黄莹,高璞珍,徐鹏,王超群,钱旭梁

DOI: 10.3969/j.issn.1003-9015.2019.03.007

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