Numerical Simulation of Sand Cover Phenomenon on the Desert Highway Using SPH Method

Abstract

The sand cover is the main form of sand disaster for the desert highway induced by the wind-blown-sand flow over the highway. As a kind of two-phase flow of air and sand, it is necessary to study the physical principle and the mode of its migration. The Smoothing Particle Hydrodynamic (SPH) method is adopted to simulate the movement of the wind-blown-sand flow. A two dimensional model of the sand cover for desert highway with embankment is built with SPH method. The numerical simulations are carried for different embankment height to investigate the sand cover distribution on the road surface of desert highway. The results show that the migration of sand with wind blow can be well simulated using SPH method and the embankment height is an important factor for controlling sand cover disaster of desert highway.

Calibration of contact parameters of sandy soil for planting tiger nut based on non-linear tools

“…Additionally, moisture content was measured, as presented in Table 1. The intrinsic parameters for sandy soil and steel plate were determined based on previous studies 6, [24][25][26] and the GEMM database of EDEM, as listed in Table 2.…”

The Particle Generation Method Utilizing an Arbitrary 2D Model for Smoothed Particle Hydrodynamics Modeling and Its Application in the Field of Snowdrift

“…In this paper, the smoothed particle hydrodynamics (SPH) method is used to numerically simulate the movement of snow particles in the wind-snow two-phase flow, which avoids various problems such as distortion caused by the large deformation of the grid method, and which has unique advantages in tracking the trajectory of particles and the change in physical properties [12][13][14][15]. The SPH method's fundamental tenet is to divide the computing domain into separate particles.…”