Salting particles in aeolian sand flow constitute 75％of the total sediment transport flux and represent the prin-cipal movement form of aeolian sand particles,thereby attracting extensive attention from scholars.Nevertheless,up to now,the micro and macro studies of aeolian sand particle movement have not been effectively integrated,resulting in a sluggish progress in the research of saltation movement.The primary cause lies in the constraint of measurement technology,as a bridge between macro and micro research(the statistical characteristics of saltation particle motion parameters)has not been resolved satisfactorily.In light of this,a digital reconstruction algorithm for the movement trajectory of saltation particles of wind-blown sand based on the MATLAB platform is developed.Through the continuous image sequence of saltation particles of wind-blown sand moving in the experimental wind tunnel acquired by the high-speed photography system,sand recogni-tion,sand matching,and fitting curve are implemented.Subsequently,the motion parameters such as velocity and angle of saltation sand at each point of the trajectory are obtained.
万方数据
维普
