Analysis on the dynamical behaviors of aeolian sand ripples and sand dunes
风成沙波纹和沙丘的动力行为分析

Three dimensional quantitative simulations on the formation and evolution of aeolian sand ripples and sand dunes are presented.The simulations successfully replayed the self-reparation behavior of sand ripples and the collision behavior of sand dunes.The simulation results revealed the dominant physical laws governing the self-reparation behavior of sand ripples and Y-junctions,and the phenomena that two aeolian barchan dunes collide with each other in a manner similar to solitons or solitary waves.The resu...