A hybrid lagrangian-eulerian formulation for bubble generation and dynamics

Saket Patkar, Mridul Aanjaneya, Dmitriy Karpman, Ronald Fedkiw

Research output: Chapter in Book/Report/Conference proceedingConference contribution

23 Scopus citations

Abstract

We present a hybrid Lagrangian-Eulerian framework for simulating both small and large scale bubble dynamics, where the bubbles can grow or shrink in volume as dictated by pressure forces in the surrounding fluid. Small under-resolved bubbles are evolved using Lagrangian particles that are monolithically two-way coupled to the surrounding flow in a manner that closely approximates the analytic bubble oscillation frequency while converging to the analytic volume as predicted by the well-known Rayleigh-Plesset equation. We present a novel scheme for interconverting between these underresolved Lagrangian bubbles and larger well-resolved bubbles that are modeled with a traditional Eulerian level set approach. We also present a novel seeding mechanism to realistically generate bubbles when simulating fluid structure interaction with complex objects such as ship propellers. Moreover, our framework for bubble generation is general enough to be incorporated into all grid-based as well as particle-based fluid simulation methods.

Original languageEnglish (US)
Title of host publicationProceedings - SCA 2013
Subtitle of host publication12th ACM SIGGRAPH / Eurographics Symposium on Computer Animation
Pages105-114
Number of pages10
DOIs
StatePublished - Sep 2 2013
Externally publishedYes
Event12th ACM SIGGRAPH / Eurographics Symposium on Computer Animation, SCA 2013 - Anaheim, CA, United States
Duration: Jul 19 2013Jul 21 2013

Publication series

NameProceedings - SCA 2013: 12th ACM SIGGRAPH / Eurographics Symposium on Computer Animation

Other

Other12th ACM SIGGRAPH / Eurographics Symposium on Computer Animation, SCA 2013
CountryUnited States
CityAnaheim, CA
Period7/19/137/21/13

All Science Journal Classification (ASJC) codes

  • Computer Graphics and Computer-Aided Design
  • Human-Computer Interaction
  • Software

Keywords

  • Bubbles
  • Cavitation
  • Entrainment
  • Water

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  • Cite this

    Patkar, S., Aanjaneya, M., Karpman, D., & Fedkiw, R. (2013). A hybrid lagrangian-eulerian formulation for bubble generation and dynamics. In Proceedings - SCA 2013: 12th ACM SIGGRAPH / Eurographics Symposium on Computer Animation (pp. 105-114). (Proceedings - SCA 2013: 12th ACM SIGGRAPH / Eurographics Symposium on Computer Animation). https://doi.org/10.1145/2485895.2485912