| 薄膜沿加热平板下落的稳定性分布 |
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| 引用本文： | 胡军,胡国辉,孙德军,尹协远.薄膜沿加热平板下落的稳定性分布[J].上海力学,2003,24(1):23-29. |
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| 作者姓名： | 胡军 胡国辉 孙德军 尹协远 |
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| 作者单位： | [1]中国科学技术大学力学和机械工程系，合肥230026 [2]上海大学，上海200072 |
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| 基金项目： | 国家自然科学基金委资助项目(批准号10002018) |
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| 摘 要： | 本文分析了薄膜沿加热平板下落的稳定性。在时间模式下，发现流动的不稳定性是由表面波不稳定和加毛细不稳定构成的，同时当流体的热扩散越大以及界面热量损失越小时，热毛细不稳定越剧烈，在时空模式下，流动随着Marangoni数的增大。流动有可能从对流不稳定过渡到绝对不稳定，这一结论尚待实验验证。
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| 关 键 词： | 薄膜 热毛细不稳定性 绝对／对流不稳定 |
| 修稿时间： | 2002年7月1日 |
Instability of a Falling Thin Film along Inclined Heated Plate |
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| HU Jun,HU Guo-hui,SUN De-jun,YIN Xie-yuan.Instability of a Falling Thin Film along Inclined Heated Plate[J].Chinese Quarterly Mechanics,2003,24(1):23-29. |
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| Authors: | HU Jun HU Guo-hui SUN De-jun YIN Xie-yuan |
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| Abstract: | The instability of a falling thin film down an inclined heated plate was aualyzed. It was found there are two unstable modes of disturbances for thin film instabilities, i.e. surface wave instability and thermo-capillary instability. For the temporal mode, the larger heat diffusion of the flow and the less loss of the surface heat lead to more severe thermo-capillary instability. For the spatio-temporal mode, with Marangoni number increasing, the flow instability changes from the convective instability to absolute instability. This result needs to be verified by experiments. |
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| Keywords: | falling thin film thermo-capillary instability absolute/convective instability |
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