Underwater bubbles and coupling
Published in ACM SIGGRAPH Talks, 2020
Abstract
We present an approach to simulating underwater bubbles. Our method is sparse in that it only simulates a thin band of water around the region of interest allowing us to achieve high resolu- tions in turbulent scenarios. We use a hybrid bubble representation consisting of two parts. The hero counterpart utilizes an incompressible two-phase Navier-Stokes solve on an Eulerian grid with air phase also represented via FLIP/APIC particles to facilitate volume conservation and accurate interface tracking. The diffuse counter-part captures sub-grid bubble motion not “seen” by the Eulerian grid. We represent those as particles and develop a novel scheme for coupling them with the bulk fluid. The coupling scheme is not limited to sub-grid bubbles and may be applied to other thin/porous objects such as sand, hair, and cloth.
Recommended citation: Alexey Stomakhin, Joel Wretborn, Kevin Blom, and Gilles Daviet. 2020. "Underwater Bubbles and Coupling." Special Interest Group on Computer Graphics and Interactive Techniques Conference Talks. https://doi.org/10.1145/3388767.3407390.
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