FrictionalMonolith: A Monolithic Optimization-based Approach for Granular Flow with Contact-Aware Rigid-Body Coupling

Tetsuya Takahashi, Christopher Batty We propose FrictionalMonolith, a monolithic pressure-friction-contact solver for more accurately, robustly, and efficiently simulating two-way interactions of rigid bodies with continuum granular materials or inviscid liquids. By carefully formulating the components of such systems within a single unified minimization problem, our solver can simultaneously handle unilateral incompressibility and implicit integration of […]

Posted by christopherbatty on October 30th, 2021 | Comments Off on FrictionalMonolith: A Monolithic Optimization-based Approach for Granular Flow with Contact-Aware Rigid-Body Coupling Posted in Uncategorized

Spiral-Spectral Fluid Simulation

Qiaodong Cui, Timothy Langlois, Pradeep Sen, and T. Kim We introduce a fast, expressive method for simulating fluids over radial domains, including discs, spheres, cylinders, ellipses, spheroids, and tori. We do this by generalizing the spectral approach of Laplacian Eigenfunctions, resulting in what we call spiral-spectral fluid simulations. Starting with a set of divergence-free analytical […]

Posted by christopherbatty on October 19th, 2021 | Comments Off on Spiral-Spectral Fluid Simulation Posted in Uncategorized