Technical Papers

Fluids II

Thursday, 29 July | 10:45 AM - 12:15 PM | Room 403 AB
Session Chair: Michael Kass, Pixar Animation Studios
A Novel Algorithm for Incompressible Flow Using Only a Coarse Grid Projection

This novel technique for quickly simulating detailed fluids coarsens the Eulerian fluid grid during the pressure solve, allowing for a fast implicit update but still maintaining the resolution obtained with a large grid.

Michael Lentine
Stanford University

Wen Zheng
Stanford University

Ronald Fedkiw
Stanford University

Filament-Based Smoke With Vortex Shedding and Variational Reconnection

Vortex filaments provide an intuitive and compact model for designing smoke effects. This paper introduces a model that includes moving obstacles with vortex shedding, which allows detailed simulations of complex scenarios at interactive rates. The long-term behavior is excellent: energy and momentum stay within reasonable bounds, and computational complexity does not increase over time.

Steffen Weissmann
Technische Universität Berlin

Ulrich Pinkall
Technische Universität Berlin

Underwater Cloth Simulation With Fractional Derivatives

This paper introduces the use of fractional differentiation for simulating cloth deformations underwater without the use of a volumetric fluid simulation. The proposed fractional cloth model employs half-derivative visco-elastic elements to model cloth responses to fluid stresses and emulate the memory-laden behavior of particles in a viscous fluid.

Oktar Ozgen
University of California, Merced

Marcelo Kallmann
University of California, Merced

Lynnette E. S. Ramirez
University of California, Merced

Carlos F. M. Coimbra
University of California, Merced

Discrete Viscous Threads

This paper develops a model for simulating long, thin strands of viscous materials, like honey poured from a bottle. The model is validated against analytic and experimental results. This same model can be used to simulate elastic rods with implicit solvers, providing a ten-fold speedup over previous explicit formulations.

Miklos Bergou
Columbia University

Basile Audoly
Université Pierre et Marie Curie - Paris 6, Centre national de la recherche scientifique

Etienne Vouga
Columbia University

Max Wardetzky
Universität Göttingen

Eitan Grinspun
Columbia University

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