欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用大涡模拟和混合粒径群体沙粒运动算法结合内置边界方法来模拟沙波纹与沙丘的演化和发展，在平坦沙区形成沙波纹的同时，在沙丘上同样也出现了沙波纹的结构．即沙波纹的发展出现了多尺度现象。此外，还分析了粒径对沙波纹与沙丘自身形态演化和发展的影响，以及沙丘对平坦沙区沙波纹形成发展的作用。
英文摘要：
The methods of large-eddy simulation, the motion of sand particles with mixed sand sizes and immersed boundary are used to simulate the formation and evolution of sand ripples and sand dunes. When sand ripples appear in the flat ground, at the same time, they also shown up on the sand dunes, which means that the evolution of sand ripples has multiscale nature. Besides, the effects of sand sizes to the formation and evolution of sand ripples and sand dunes, and the effects of sand dunes to the formation and evolution of sand ripples on the flat ground, are analyzed.
同期刊论文项目
同项目期刊论文
Simulation of wind-blown sand movement and probability density function of liftoff velocities of san
Theoretical prediction of liftoff angular velocity distributions of sand particles in wind-blown san
Large-Eddy simulations of turbulent flows with lattice Boltzmann dynamics and dynamical system sub-g
Analysis of the forces acting on the saltating particles in the coupled wind-sand-electricity fields
Statistical behaviors of different-size grains lifting off in stochastic collisions between mixed sa
期刊信息
位置：