| 快速降压下过热液中汽泡的生长 |
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| 引用本文： | 刘朝,曾丹苓.快速降压下过热液中汽泡的生长[J].工程热物理学报,1998(1). |
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| 作者姓名： | 刘朝 曾丹苓 |
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| 作者单位： | 重庆大学热力工程系!重庆，400044，重庆大学热力工程系!重庆，400044 |
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| 基金项目： | 国家自然科学基金，教委博士点专项基金 |
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| 摘 要： | 1前言定压力场下过热液体中汽泡生长已得到深入研究1-3]。近年来，变压力场下过热液体中汽泡生长问题，引起研究者重视。文献4-7]研究表明降压对汽泡生长起着重要作用。从理论上看快速降压过程中蒸汽密度随时间变化较大，准确考虑十分困难；过热液处于热力学亚稳平衡状态，因此需用外推法确定物性数据。从实验研究看在快速降压过程中保证时间和空间上同时准确观察汽泡生长，实验技术实施上有一定难度。因此无论从理论上还是实验上对变压场下过热液中汽泡生长研究有待进一步深入。2汽泡生长模型汽泡生长过程中汽液两相化学势差在相变中起着…
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| 关 键 词： | 过热液 降压 汽泡生长 |
BUBBLE GROWTH IN A SUPERHEATED LIQUID DURING RAPID DECOMPRESSION |
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| LIU Chao, ZENG Danling.BUBBLE GROWTH IN A SUPERHEATED LIQUID DURING RAPID DECOMPRESSION[J].Journal of Engineering Thermophysics,1998(1). |
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| Authors: | LIU Chao ZENG Danling |
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| Abstract: | Based on the theory of non-equilibrium thermodynamics a new mathematical modelfor bubble growth in a superheated liquid during rapid decompression was built up. In themodel the bubble growth process was regarded as a polytropic process rather than along thesaturation curve, thus a positive thermodynamic driving force for the process is guaranteed.A numerical simulation of the bubble growth process is performed for water. Some significantresults were obtained. |
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| Keywords: | Superheated liquid decompression bubble growth |
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