| 一维双流体分层/段塞流模型的特征根分析 |
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| 引用本文： | 顾汉洋,郭烈锦.一维双流体分层/段塞流模型的特征根分析[J].工程热物理学报,2006,27(Z1):217-220. |
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| 作者姓名： | 顾汉洋 郭烈锦 |
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| 作者单位： | 西安交通大学动力工程多相流国家重点实验室,陕西,西安,710049 |
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| 基金项目： | 国家自然科学基金;国家重点实验室基金 |
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| 摘 要： | 采用特征根方法对描述水平和倾斜管内气液分层流/段塞流的一维双流体模型进行适定性分析.系统分析了气液两相密度、粘性和管道倾角对一维双流体模型适定性的影响。计算结果表明:液相密度、气相粘性和管道下倾角的增大能拓宽方程组求解的适定区域;适定界线与气液两相流流型转变界线之间存在内在联系.
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| 关 键 词： | 特征根 一维双流体模型 适定性 |
| 文章编号： | 0253-231X(2006)Suppl.1-0217-04 |
| 修稿时间： | 2006年1月23日 |
CHARACTERISTICS ANALYSIS OF TRANSIENT ONE-DIMENSIONAL TWO-FLUID MODEL FOR STRATIFIED AND SLUG FLOWS |
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| GU Han-Yang,GUO Lie-Jin.CHARACTERISTICS ANALYSIS OF TRANSIENT ONE-DIMENSIONAL TWO-FLUID MODEL FOR STRATIFIED AND SLUG FLOWS[J].Journal of Engineering Thermophysics,2006,27(Z1):217-220. |
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| Authors: | GU Han-Yang GUO Lie-Jin |
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| Abstract: | Equation system describing one-dimensional transient two-fluid model for stratified and slug flows in pipes is analyzed using the method of characteristics.Gas compressibility is taken into account in the analysis.The effects of physical properties and pipe inclination on the well-posedness of equation system are studied,respectively.It is found that increases in density of liquid,viscosity of gas and pipe upward inclination enlarge the well-posedness region.It is also shown that the well-posedness limit fits well with the stratified-to-slug flow pattern transition boundaries. |
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| Keywords: | characteristics one-dimension two-fluid model well-posedness |
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