ISPH–PBD: coupled simulation of incompressible fluids and deformable bodies

Abstract : We present an efficient and stable method for simulating the two-way coupling of incompressible fluids and deformable bodies. In our method, the fluid is represented by particles, and simulated using divergence-free Incompressible Smoothed Particle Hydrodynamics (ISPH). The deformable bodies are represented by polygonal meshes, where the elastic deformations are simulated using a Position Based Dynamics (PBD) scheme. Our technique enforces incompressibility on the fluid using divergence-free constraints on the velocity field, while it effectively simulates the physical features of deformable bodies. Most current ISPH methods are struggling with the issue of free surface boundary conditions. We handle this problem by introducing a novel free surface formulation, where our free surface model obviates the need to identify the surface particles. For the interaction between the fluid and the deformable solids, we model the forces that both phases, fluid and solid, exert upon each other. We demonstrate that our approach effectively handles complex coupling scenarios between fluids and thin deformable shells or highly deformable solids, and produces plausible results.
Complete list of metadatas

Cited literature [77 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-02139901
Contributor : David Vanderhaeghe <>
Submitted on : Sunday, May 26, 2019 - 8:22:37 AM
Last modification on : Thursday, October 17, 2019 - 8:55:55 AM

Files

 Restricted access
To satisfy the distribution rights of the publisher, the document is embargoed until : 2019-11-18

Please log in to resquest access to the document

Identifiers

Citation

Nadine Rumman, Prapanch Nair, Patric Müller, Loïc Barthe, David Vanderhaeghe. ISPH–PBD: coupled simulation of incompressible fluids and deformable bodies. Visual Computer, Springer Verlag, In press, ⟨10.1007/s00371-019-01700-y⟩. ⟨hal-02139901⟩

Share

Metrics

Record views

74