Real-Time Simulation Of Fluid In Pipes Based On SPH Methods And The Optimization On GPU

Fluid simulation plays an important role in computer virtual reality technology, inrecent years, with the advances in computer graphics, a variety of fluid simulationtechniques are constantly developing, but there are still problems in fluid simulation suchas the simulation speed is still slow and the realistic is not enough in dealing withlarge-scale fluid simulation, fluid simulation and implementation is a big challenge in thefield of computer virtual reality. Based on the above analysis, this paper presents aGPU-based pipeline fluid simulation method, optimized the fidelity and the simulationspeed of the pipeline fluid simulation.Firstly, building the pipeline fluid simulation interactive architecture, this paperanalyzes the mesh-free particle method development, the advantages and disadvantages ofthe mesh-free method, points out the feasibility of using mesh-free particle method forsimulating pipeline fluid. Then we use the SPH particles method of one mesh-free methodto simulate the pipeline fluid particles processing, and build a pipeline fluid interactivesimulation framework.Secondly, achieving the preliminary simulation of the pipeline fluid in the virtualscene and expanding the preliminary simulation with SPH particle method. The simpleparticles are reconstruct with the SPH particles in simulation scenarios，this methodincreases the complexity of the fluid particles, but also improves the authenticity of thefluid flow effects.Thirdly, the pipeline fluid simulation system is transplanted to the GPU to optimizethe effect, the smooth kernel function is also constructed, analyzes several neighboringparticle search algorithms, proposes a multidimensional tree searching algorithm based onGPU, the algorithm can greatly accelerate the search speed of adjacent particles in theSPH method, thereby increasing the pipeline fluid simulation scene rendering speed.Finally, building the pipeline fluid simulation experiment platform, pipeline fluidsimulation system is designed and achieving the flowing simulation of the pipeline fluid inthe virtual scene and the fluid formed whirlpool sputtering effect, the fluid simulation andexperimental results and the current popular algorithms are compared. Experiments show that the fluid particles search speed is improved and virtual scene rendering speed isgreatly increased to meet the real-time requirements and authenticity of the pipeline fluidsimulation.