| 格子Boltzmann方法模拟融化相变过程 |
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| 引用本文： | 杲东彦,陈振乾,施明恒.格子Boltzmann方法模拟融化相变过程[J].工程热物理学报,2011(1):85-88. |
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| 作者姓名： | 杲东彦 陈振乾 施明恒 |
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| 作者单位： | 东南大学能源与环境学院;南京工程学院能源与动力工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(No.50776015); 国家“十一五”科技支撑项目(No.2008BAJ12B04) |
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| 摘 要： | 建立融化和自然对流耦合的格子Boltzmann双分布函数模型,采用焓法迭代求解相变非线性源项,并通过变松弛时间方法处理固液两相变热物性间题.热传导融化过程的计算值与分析解的对比分析说明该模型能够准确地模拟融化过程.自然对流条件下融化过程的模拟结果表明自然对流在一定程度上影响了融化传热及融化速率等,体现出与热传导融化不同...
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| 关 键 词： | 格子-Boltzmann方法 融化 数值模拟 自然对流 |
LATTICE BOLTZMANN SIMULATION OF MELTING PROBLEM |
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| GAO Dong-Yan CHEN Zhen-Qian SHI Ming-Heng.LATTICE BOLTZMANN SIMULATION OF MELTING PROBLEM[J].Journal of Engineering Thermophysics,2011(1):85-88. |
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| Authors: | GAO Dong-Yan CHEN Zhen-Qian SHI Ming-Heng |
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| Institution: | GAO Dong-Yan~(1,2) CHEN Zhen-Qian~1 SHI Ming-Heng~1 (1.School of Energy and Environment,Southeast University,Nanjing 210096,China,2.School of Energy and Power Engineering,Nanjing Institute of Technology,Nanjing 211167,China) |
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| Abstract: | A double distribution lattice Boltzmann model is developed and analysed to study the melting problem with the natural convection.An iterative enthalpy-based method is utilized to solve the nonlinear source term.The solid-liquid conjugate heat transfer is simulated based on an adjustable relaxation time.For conduction-dominated melting,the results of lattice Boltzmann simulation is consistent with the analytical solution.Due to the distinction between the convection-dominated melting and conduction-dominated... |
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| Keywords: | lattice Boltzmann method melting numerical simulation natural convection |
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