| 竖直窄流道内过冷流动沸腾的单汽泡生长模型 |
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| 引用本文： | 袁德文,潘良明,陈德奇. 竖直窄流道内过冷流动沸腾的单汽泡生长模型[J]. 化工学报, 2009, 60(11): 2723-2728 |
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| 作者姓名： | 袁德文 潘良明 陈德奇 |
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| 作者单位： | 重庆大学动力工程学院,重庆,400044;重庆大学动力工程学院,重庆,400044;重庆大学动力工程学院,重庆,400044 |
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| 基金项目： | 国家自然科学基金，空泡物理和自然循环国家重点实验室开放基金 |
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| 摘 要： |
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| 关 键 词： | 过冷沸腾 汽泡生长模型 VOF模型 |
| 收稿时间： | 2009-03-13 |
| 修稿时间： | 2009-8-17 |
Model for single bubble growth of subcooled flow boiling in vertical narrow rectangular channel |
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| YUAN Dewen,PAN Liangming,CHEN Deqi. Model for single bubble growth of subcooled flow boiling in vertical narrow rectangular channel[J]. Journal of Chemical Industry and Engineering(China), 2009, 60(11): 2723-2728 |
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| Authors: | YUAN Dewen PAN Liangming CHEN Deqi |
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| Abstract: | The process of bubble growth on heating wall in subcooled boiling includes the micro-layer evaporation on heating wall and the bubble top coagulation when the bubbles grow to a certain size and emerge into the subcooled mainstream fluid. Based on this consideration, a model for the single bubble growth of subcooled flow boiling in vertical narrow rectangular channel was proposed.Compared with experimental results, the error of the simulation results using the proposed model is less than ±25%. The simulation results indicated that as the wall superheat increases, the bubble growth gets faster, with the subcooled degree of mainstream increases, the bubble growth in later stage would be slowed, with the contact angle increases, the contact radius of the bubble bottom and the wall tension would be strengthened, resulting in faster bubble growth to make the bubble to be flat and more easily exposed to the mainstream. The velocity of mainstream has no significant effects on bubble growth rate. |
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| Keywords: | subcooled flow boiling model of bubble growth VOF model |
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