二维槽道湍流数值模拟与白组织特性 Direct simulation and self-organization of two-dimensional tur

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BIfq-g%L.m A0二维槽道湍流数值模拟与白组织特性Direct simulation and self-organization of two-dimensional turbulent channel flow

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摘要:从流体力学基本方程出发,讨论了二维槽道湍流的衰减特性,通过对流场施加合适的体积力,采用拟谱方法对二维槽道强制湍流进行了数值模拟.研究了二维槽道衰减湍流的自组织与逆能量级串特性,再现了二维槽道衰减湍流中湍涡的自组织过程,以及不同波数湍流结构所携能量在自组织过程中的变化,并解释了二维槽道湍流平均速度曲线特征以及海洋环流所特有的自然现象.水利论文V_3|Ok!F y

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9C5]_JkT.v0美的制冷家电集团技术研发中心,528311,佛山;华中科技大学,430074,武汉华中科技大学,430074,武汉水利论文jo/FJz+M6nN8I\(J1IG

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Journal:

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CG3w|2B$D]0CHINESE JOURNAL OF APPLIED MECHANICS

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P2dIM?b0年,卷(期):

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&s+_Gv%x,Ft02010, 27(3)

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二维槽道湍流水利论文#jpF%zFK.iM4c4d

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二维槽道湍流 湍流数值模拟 组织特性 自组织过程 衰减特性 自然现象 湍流结构 曲线特征 强制湍流 平均速度 拟谱方法 能量级串 流体力学 基本方程 海洋环流 体积力 对流场 湍涡 讨论 波数水利论文J,qh+~];ro}]

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基金项目:

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m6|(H[ c+qj0X0国家自然科学基金,兰州大学西部灾害与环境力学教育部重点实验室开放基金

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