| 静止环境中甲醇液滴蒸发的数值模拟 |
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| 引用本文： | 倪培永,王忠,毛功平,袁银男.静止环境中甲醇液滴蒸发的数值模拟[J].江苏大学学报(自然科学版),2010,31(3). |
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| 作者姓名： | 倪培永 王忠 毛功平 袁银男 |
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| 作者单位： | 江苏大学,汽车与交通工程学院,江苏,镇江,212013 |
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| 基金项目： | 江苏省高校自然科学重大基础项目(08KJA470001);;江苏大学高级专业人才科研启动基金资助项目(09JDG007) |
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| 摘 要： | 采用单液滴非平衡蒸发的数学物理模型,研究了静止环境中甲醇液滴的瞬态蒸发特性,获得了不同环境压力、环境温度和液滴的初始温度条件下液滴半径和液滴温度的变化规律.结果表明,随着环境压力的升高,液滴所达到平衡蒸发温度上升,在环境温度高于临界温度时,液滴蒸发加快,而在环境温度低于液滴临界温度时,液滴蒸发减慢.随着环境温度的上升,液滴蒸发速度加快,液滴达到的平衡温度上升.液滴初始温度对瞬态加热阶段的蒸发有一定的影响,而对平衡蒸发阶段的蒸发几乎没有影响.
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| 关 键 词： | 甲醇 液滴蒸发 环境压力 临界温度 非平衡模型 |
Simulation of methanol droplet evaporation in quiescent environment |
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| Ni Peiyong,Wang Zhong,Mao Gongping,Yuan Yinnan.Simulation of methanol droplet evaporation in quiescent environment[J].Journal of Jiangsu University:Natural Science Edition,2010,31(3). |
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| Authors: | Ni Peiyong Wang Zhong Mao Gongping Yuan Yinnan |
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| Institution: | School of Automotive and Traffic Engineering/a>;Jiangsu University/a>;Zhenjiang/a>;Jiangsu 212013/a>;China |
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| Abstract: | For a single methanol droplet in quiescent environment,the evaporation characteristics were simulated using the non-equilibrium evaporation model.The effects of the ambient pressure,temperature,and the droplet radius and temperature at the initial droplet temperature condition were investigated.The results indicate that the droplet equilibrium temperature increases with the increase of ambient pressure.The droplet evaporates faster when the ambient temperature is lower than the critical temperature and it e... |
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| Keywords: | methanol droplet evaporation ambient pressure critical temperature non-equilibrium model |
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