Simulation, Prediction and Experiment on Windblown Sand Movement and Aeolian Geomorphology

In the evolution processes of wind blown sand movement and aeolian geomorphology, it always contains some complex behaviors, for example, the nonlinear character of turbulence and attractors, the stochastic character of wind gust, liftoff and movement of sand, the interaction among wind field, sand movement, electric field in wind blown sand flux and thermal diffusion, multi-scale character from sand ripple to dune, which deserve to be paid attention by mechanical researchers. In this paper, we introduce the recent works of our research group in Lanzhou University, China on the measurement, modeling and simulation of wind blown sand movement and aeolian geomorphology in detail. 1. THE FLUCTUATION AND INTERMITTENCE CHARACTERS OF WIND VELOCITY AND SAND TRANSPORT INTENSITY With instruments jointly developed and integrated by our researchers and American colleagues, we realized to simultaneously measure the natural wind profile, sand transport intensity, sand transport rate, temperature and humidity in the near-surface layer in real-time with high frequency. -500 0 50