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湍流猝发作用下悬移颗粒运动轨迹的分形与自组织特征
The Study on Fractal and Self-organized Behaviors of Suspended Particle under the Action of Turbulence-bursting
【摘要】 运用牛顿力学和分形动力学相结合的方法建立单颗泥沙悬浮运动的随机微分方程 ,从理论上论证了悬移颗粒运动轨迹具有分形和自组织特征。以Sumer和Deigaard等人的实验资料为例给出了模型的应用
【Abstract】 The stochastic differential equations are first proposed to describe the motion of single suspended particle by combining Newton’s mechanism with the fractal dynamics.And then the fractal and self-organized behaviors of movement trajectory of suspended particle are expounded and proved theoretically.Finally,the application of the above theoretical approaches,by taking Sumer’s and Deigaard’s experimental data for example,is demonstrated.
【关键词】 湍流猝发;
悬移颗粒;
运动轨迹;
分形;
自组织;
【Key words】 turbulence-bursting; suspended particle; movement behavior; fractal; self-organization;
【Key words】 turbulence-bursting; suspended particle; movement behavior; fractal; self-organization;
【基金】 国家自然科学基金重大项目 ( 5 9890 2 0 0 );水利部重大项目 ( 5 96 790 10 );教育部资助国家重点实验室访问学者基金 (教育部教技司〔1999〕15 4号 );四川大学高速水力学国家重点实验室开放基金
- 【文献出处】 茂名学院学报 ,Journal of Guandong College Petrochemical Technology , 编辑部邮箱 ,2001年03期
- 【分类号】TV142
- 【被引频次】5
- 【下载频次】149