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风沙与水沙运动多重时间尺度与深度积分模式

李志晶 曹志先 胡鹏 Gareth Pender

李志晶, 曹志先, 胡鹏, Gareth Pender. 风沙与水沙运动多重时间尺度与深度积分模式[J]. 力学学报, 2013, 45(2): 158-163. doi: 10.6052/0459-1879-12-311
引用本文: 李志晶, 曹志先, 胡鹏, Gareth Pender. 风沙与水沙运动多重时间尺度与深度积分模式[J]. 力学学报, 2013, 45(2): 158-163. doi: 10.6052/0459-1879-12-311
Li Zhijing, Cao Zhixian, Hu Peng, Gareth Pender. MULTIPLE TIME SCALES OF AEOLIAN AND FLUVIAL PROCESSES AND DEPTH-AVERAGED INTEGRAL MODELLING[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(2): 158-163. doi: 10.6052/0459-1879-12-311
Citation: Li Zhijing, Cao Zhixian, Hu Peng, Gareth Pender. MULTIPLE TIME SCALES OF AEOLIAN AND FLUVIAL PROCESSES AND DEPTH-AVERAGED INTEGRAL MODELLING[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(2): 158-163. doi: 10.6052/0459-1879-12-311

风沙与水沙运动多重时间尺度与深度积分模式

doi: 10.6052/0459-1879-12-311
基金项目: 国家自然科学基金资助项目(10972164).
详细信息
    通讯作者:

    李志晶,博士研究生,主要研究方向:河流动力学及泥沙运动力学.E-mail:lzjketty@whu.edu.cn

  • 中图分类号: X169

MULTIPLE TIME SCALES OF AEOLIAN AND FLUVIAL PROCESSES AND DEPTH-AVERAGED INTEGRAL MODELLING

Funds: The project was supported by the National Natural Science Foundation of China (10972164).
  • 摘要: 针对风沙与水沙动力学研究的共性,提出风沙与水沙运动统一深度积分模式;在此基础上,将水沙运动过程多重时间尺度理论扩展至风沙运动,比较研究风沙与水沙运动向平衡状态调整的时间尺度特征. 数值算例与风洞实验结果对比表明,积分平均模型能够基本准确地捕捉风沙运动的输沙率变化等基本特征;风沙与水沙运动的积分时间尺度比较分析表明,风沙运动与水沙运动类似,推移质运动能够很快地调整到平衡状态,而悬移质运动调整到平衡状态则需要相对较长的过程,在湍流悬移质实验和数值模拟研究中应考虑恢复平衡过程的影响.

     

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  • 被引次数: 0
出版历程
  • 收稿日期:  2012-11-08
  • 修回日期:  2013-02-02
  • 刊出日期:  2013-03-18

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