The paper presents the application of the PolyPIC method to liquid-fabric interaction simulations, building upon the work of Fei et al. which used the APIC method. The key highlights are:
PolyPIC uses higher-order polynomial transfers between particles and the grid, which theoretically enables lossless energy transfer and reduces numerical dissipation compared to APIC.
The results show that PolyPIC enables more dynamic coupled simulations, with improved preservation of rotational velocities and better resolution of vorticial details in fluid simulations.
For smaller-scale simulations, the computational impact of using PolyPIC instead of APIC is minimal. However, as the number of particles and mesh elements increases, PolyPIC can require up to 2.5x longer simulation times due to the need for smaller timesteps to maintain stability.
The reduced numerical damping of PolyPIC causes the fluid to splash off the fabric rather than being absorbed, leading to a more dynamic interaction between the liquid and fabric.
Stability issues arise when using higher-order polynomial modes in PolyPIC for coupled liquid-fabric simulations, requiring the use of smaller timesteps to maintain stability.
Overall, the paper demonstrates the potential of PolyPIC to improve the realism and dynamism of liquid-fabric interaction simulations, but also highlights the need for further research to address the stability challenges.
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by Robert Denni... о arxiv.org 04-18-2024
https://arxiv.org/pdf/2308.01060.pdfГлибші Запити