| 基于LBM方法的圆盘等速入水空泡的数值模拟 |
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| 引用本文： | 张珂,颜开,褚学森,程贯一. 基于LBM方法的圆盘等速入水空泡的数值模拟[J]. 船舶力学, 2010, 14(10): 1129-1133. DOI: 10.3969/j.issn.1007-7294.2010.10.008 |
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| 作者姓名： | 张珂 颜开 褚学森 程贯一 |
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| 作者单位： | 中国船舶科学研究中心,江苏,无锡,214082;中国船舶科学研究中心,江苏,无锡,214082;中国船舶科学研究中心,江苏,无锡,214082;中国船舶科学研究中心,江苏,无锡,214082 |
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| 摘 要： | 采用单相格子Boltzmann模型进行了物体垂直入水问题的研究.该模型适用于大密度比的气液两相流动,其特点是忽略了系统中气相对液相的动力学影响.模拟了圆盘垂直等速入水过程,给出了入水过程中空泡与自由面的变化规律,研究了圆盘入水空泡相对闭合深度与Froude数之间的关系.数值模拟结果与相关的实验结果吻合良好,验证了格子Boltzmann方法(LBM:Lattice Boltzmann Method)模拟物体入水问题的可行性.
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| 关 键 词： | 入水卒泡 数值模拟 格子Boltzmann方法(LBM) 自由面流动 |
Numerical simulation of constant speed water-entry cavity based on LBM |
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| ZHANG Ke,YAN Kai,CHU Xue-sen,CHEN Guan-yi. Numerical simulation of constant speed water-entry cavity based on LBM[J]. Journal of Ship Mechanics, 2010, 14(10): 1129-1133. DOI: 10.3969/j.issn.1007-7294.2010.10.008 |
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| Authors: | ZHANG Ke YAN Kai CHU Xue-sen CHEN Guan-yi |
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| Affiliation: | ZHANG Ke,YAN Kai,CHU Xue-sen,CHEN Guan-yi(China Ship Scientific Research Center,Wuxi 214082,China) |
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| Abstract: | A single phase free surface lattice Boltzmann model is implemented to the simulation of the process of body entering water vertically.The single-phase model,which is characterized by neglecting the in-fluence of the gas phase to the liquid phase in the system,is applied as it is mostly valid for the gas-liquid two-phase flow with high density ratio.A three dimensional disk entering water vertically at constant speed is simulated.The process of the interaction of cavity with free surface and the relationship... |
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| Keywords: | water-entry cavity numerial simulation Lattice Boltzmann Method(LBM) free surface flow |
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