基于位置的流体实时交互仿真

Real-Time Interaction Simulation with Position-Based Fluid

针对基于光滑粒子动力学方法的流体交互仿真过程中效率低,交互细节不够真实等问题,提出了采用基于位置的流体来模拟刚体工具与流体的交互方法.该方法在传统的光滑粒子动力学算法的基础上进行改进,以基于CUDA并行计算平台实时模拟交互过程,并结合力觉交互设备实时输出交互力.实验结果表明仿真过程中的交互力符合预期,在保证流体模拟的精度的前提下验证了交互力的连续性以及稳定性.

In view of the low efficiency and lack of real details in the process of the fluid interaction simulation based on SPH（Smoothed Particle Hydrodynamics）, an interactive simulation method based on position-based fluid is proposed to simulate rigid body tool and fluid. This method is improved on the basis of the traditional SPH algorithm, and the interactive process is simulated in real time based on CUDA parallel computing platform. Then, the real-time output interaction force is combined with force interaction device. The experimental results show that the interaction force in the simulation process is in accordance with the expectation, and the continuity and stability of the interaction force are verified under the premise of ensuring the accuracy of the fluid simulation.