| 射流速度剖面形状变化及其对界面稳定性的影响 |
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| 引用本文： | 李小军,胡国辉,周哲玮.射流速度剖面形状变化及其对界面稳定性的影响[J].应用数学和力学,2005,26(1):1-6. |
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| 作者姓名： | 李小军 胡国辉 周哲玮 |
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| 作者单位： | 上海大学 上海市应用数学和力学研究所,上海 200072 |
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| 基金项目： | 国家自然科学基金资助项目(50371049);上海宝钢集团公司联合资助项目;上海市博士点基金和上海市优秀青年教师后备人选资助项目(03YQHB092) |
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| 摘 要： | 用线性稳定性理论研究了内部为轴对称液体射流、外部为同轴气体射流的粘性双流体模型．在液体射流和气体射流分别处于不同压力梯度作用的条件下，讨论了数学模型中射流速度剖面形状变化，并用Chebyshev配点法研究了剪切层厚度变化及其对界面稳定性产生的影响．
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| 关 键 词： | 自由射流 速度剖面 Chebyshev配点法 界面稳定性 |
| 文章编号： | 1000-0887(2005)01-0001-06 |
| 收稿时间： | 2003-05-12 |
| 修稿时间： | 2003年5月12日 |
Variation of Velocity Profile of Jet and Its Effect on Interfacial Stability |
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| LI Xiao-jun,HU Guo-hui,ZHOU Zhe-wei.Variation of Velocity Profile of Jet and Its Effect on Interfacial Stability[J].Applied Mathematics and Mechanics,2005,26(1):1-6. |
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| Authors: | LI Xiao-jun HU Guo-hui ZHOU Zhe-wei |
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| Institution: | Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, P. R. China |
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| Abstract: | Linear stability theory is used to study a double fluid model for a liquid jet surrounded by a coaxial gas steam.Under the different pressure gradients for liquid and gas flow,the variation of the velocity profile in the model and the thickness of the shear layer were investigated.The effects of such variation on the interfacial stability were discussed with the application of Chebyshev spectral collocation method. |
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| Keywords: | free jet velocity profile Chebyshev collocation method interfacial stability |
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