| 剪切紊流中颗粒运动的数学模型和实验研究 |
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| 引用本文： | 李嘉,李克峰,张永泽,王烜.剪切紊流中颗粒运动的数学模型和实验研究[J].水利学报,1998,29(6):0007-0014. |
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| 作者姓名： | 李嘉 李克峰 张永泽 王烜 |
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| 作者单位： | 四川联合大学;四川联合大学;中国环境科学研究院;北京师范大学环科所 |
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| 摘 要： | 本文利用Lagrangian方法建立了剪切紊流中颗粒运动的脉动频谱随机轨迹模型，其中流体脉动速度采用Fourier级数和湍流脉动能谱来确定。数值计算结果与实验结果的对比分析表明，该模型能够很好地描述颗粒在剪切流中的运动。
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| 关 键 词： | 剪切紊流 颗粒运动 脉动频谱随机轨迹模型 |
On the mathematical model of the particle motion in shea |
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| Li Ji,Li Kefeng,Zhang Yongze,Wang Xuan.On the mathematical model of the particle motion in shea[J].Journal of Hydraulic Engineering,1998,29(6):0007-0014. |
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| Authors: | Li Ji Li Kefeng Zhang Yongze Wang Xuan |
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| Affiliation: | 1.Sichuan Union University; 2.Chinese Research Academy of Envirnmental Science; 3.Beijing Normal University |
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| Abstract: | The fluctuation spectrum random trajectory model of the particle motion in shear turbulent flow is developed using Lagrangian method, in which the velocity fluctuation of the fluid is determined by Fourier expansion and fluctuation spectrum. The comparing analyses of the modeled results with the measured results have shown that the model developed in this paper can describe well the motions of the particles in shear turbulent flow. |
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| Keywords: | shear turbulent flow particle's motion the fluctuation spectrum random trajectory model |
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