| 热局部非平衡下一维半无限长饱和多孔柱体的温度场分析 |
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| 引用本文： | 杨洋,何录武,董亮亮.热局部非平衡下一维半无限长饱和多孔柱体的温度场分析[J].上海力学,2010,31(1). |
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| 作者姓名： | 杨洋 何录武 董亮亮 |
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| 作者单位： | 华东理工大学机械与动力工程学院承压系统安全科学教育部重点实验室,上海,200237 |
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| 基金项目： | 上海市重点学科建设项目资助 |
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| 摘 要： | 对于端部受温度载荷的一维半无限长多孔介质柱体,给出了热局部非平衡下固相和流相温度场在Laplace变换域中的解析表达式.对于冲击温度载荷的情况,获得了温度场在短时间内的Laplace逆变换渐近解析解.数值分析了流、固两相热扩散系数之比以及热交换系数对固相和流相温度场的影响,比较了热局部非平衡下加权温度与热局部平衡下温度之间的差别.
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| 关 键 词： | 饱和多孔柱体 热局部非平衡 热局部平衡 Laplace变换 渐近解析解 |
Temperature Analysis of One Dimensional Semi-infinite Saturated Porous Column on Local Thermal Non-equilibrium |
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| YANG Yang,HE Lu-wu,DONG Liang-liang.Temperature Analysis of One Dimensional Semi-infinite Saturated Porous Column on Local Thermal Non-equilibrium[J].Chinese Quarterly Mechanics,2010,31(1). |
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| Authors: | YANG Yang HE Lu-wu DONG Liang-liang |
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| Institution: | YANG Yang,HE Lu-wu,DONG Liang-liang (Key Lab of Safety Science of Pressurized System,Ministry of Education,School of Mechanical , Power Engineering,East China University of Science , Technology,Shanghai,200237,China ) |
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| Abstract: | For one dimensional semi-infinite saturated porous column subjected to thermal loading on the end,the general analytical expressions of solid and fluid temperatures on local thermal non-equilibrium were obtained in Laplace transform region.For the case of impulsive thermal loading,the asymptotic solutions of temperature field were obtained during short time.The influences of thermal conductivity and heat transfer coefficient on solid and fluid temperature fields were numerically analyzed,and the difference ... |
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| Keywords: | saturated porous column local thermal non-equilibrium local thermal equilibrium Laplace transform asymptotic solution |
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