Research On Scene Simulation Of Debris Flow With Erosion Phenomenon Based On SPH

Debris flow is one of the most common geological disasters, which causes serious consequences to human society. The existing research, about debris flow movement, can simulate the implementation process of debris flow disaster by numerical calculation model, providing reference for debris flow prevention and cur. However, due to the complexity of debris flow component complex and irregular topography influence on debris flow movement, the accuracy of the model is very difficult to guarantee. Therefore, the research of heat of debris flow movement has not been reduced.In this paper, a scene of debris flow movement is simulated through the method of fluid physics-based animation modeling. We build a debris model and achieve the simulation of mudslides sports scene using smoothed particle hydrodynamics method, which is mainly for the features of the Mudslides real sports. The main work and results in this paper are as follows:1) Improvement of debris flow motion model. Bring in the simulation of debris flow on erosion calculation, and improve the calculation method of the movement of solid sediments in debris flow motion, which make certain constraints on the particle motion standing for the solid sediments. And in the end achieve the erosion effect of debris flow based on the physical fluid simulation method.2) Computing the interactions in the scene of debris flow. According to the analysis of the interaction of the mountain during the exercise of debris flow, the algorithm for real-time interaction of the terrain surface and the particle is improved. According to the different obstacles, adopt different methods to deal with the particle interactions with the obstacles, reflect the authenticity and rationality of the debris flow motion model.3)3D visualization of debris flow movement. After study the debris flow component and the interaction between the fluid and the Solid sediments. Using the Marching cube algorithm to describe dynamic real-time surface of fluid, using different volume of the rigid body model to describe the movement of solid deposits, which make debris flow simulation possible. The experiment results show that it is in line with expectation of landslide erosion model simulation in3D GIS platform in solid liquid two phases, and at the same time, irregular complex terrain effect of debris flow movement also reflect in the platform, which strengthen the sense of reality of simulation result.