Monthly Archives: May 2021

Physically-based Book Simulation with Freeform Developable Surfaces

Thomas Wolf, Victor Cornillere, Olga Sorkine-Hornung Reading books or articles digitally has become accessible and widespread thanks to the large amount of affordable mobile devices and distribution platforms. However, little effort has been devoted to improving the digital book reading … Continue reading

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Incompressible flow simulation on vortex segment clouds

Shiying Xiong, Rui Tao, Yaorui Zhang, Fan Feng, Bo Zhu We propose a novel Lagrangian geometric representation using segment clouds to simulate incompressible fluid exhibiting strong anisotropic vortical features. The central component of our approach is a cloud of discrete … Continue reading

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Clebsch Gauge Fluid

Shuqi Yang, Shiying Xiong, Yaorui Zhang, Fan Feng, Jinyuan Liu, Bo Zhu We propose a novel gauge fluid solver based on Clebsch wave functions to solve incompressible fluid equations. Our method combines the expressive power of Clebsch wave functions to … Continue reading

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Optimized Refinement for Spatially Adaptive SPH

Rene Winchenbach, Andreas Kolb In this paper we propose an improved refinement process for the simulation of incompressible low-viscosity turbulent flows using Smoothed Particle Hydrodynamics, under adaptive volume ratios of up to 1 : 1,000,000. We derive a discretized objective … Continue reading

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SANM: A Symbolic Asymptotic Numerical Solver with Applications in Mesh Deformation

Kai Jia Solving nonlinear systems is an important problem. Numerical continuation methods efficiently solve certain nonlinear systems. The Asymptotic Numerical Method (ANM) is a powerful continuation method that usually converges faster than Newtonian methods. ANM explores the landscape of the … Continue reading

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Thin-Film Smoothed Particle Hydrodynamics Fluid

Mengdi Wang, Yitong Deng, Xiangxin Kong, Aditya H. Prasad, Shiying Xiong, Bo Zhu We propose a particle-based method to simulate thin-film fluid that jointly facilitates aggressive surface deformation and vigorous tangential flows. We build our dynamics model from the surface … Continue reading

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Solid-Fluid Interaction with Surface-Tension-Dominant Contact

Liangwang Ruan, Jinyuan Liu, Bo Zhu, Shinjiro Sueda, Bin Wang, Baoquan Chen We propose a novel three-way coupling method to model the contact interaction between solid and fluid driven by strong surface tension. At the heart of our physical model … Continue reading

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A Momentum-Conserving Implicit Material Point Method for Surface Tension with Contact Angles and Spatial Gradients

Jingyu Chen, Victoria Kala, Ala Marquez-Razon, Elias Gueidon, David A. B. Hyde, Joseph Teran We present a novel Material Point Method (MPM) discretization of surface tension forces that arise from spatially varying surface energies. These variations typically arise from surface … Continue reading

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Multiscale Cholesky Preconditioning for Ill-conditioned Problems

Jiong Chen, Florian Schäfer, Jin Huang, Mathieu Desbrun Many computer graphics applications boil down to solving sparse systems of linear equations. While the current arsenal of numerical solvers available in various specialized libraries and for different computer architectures often allow … Continue reading

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High-order Differentiable Autoencoder for Nonlinear Model Reduction

Siyuan Shen, Yang Yin, Tianjia Shao, He Wang, Chenfanfu Jiang, Lei Lan, Kun Zhou This paper provides a new avenue for exploiting deep neural networks to improve physics-based simulation. Specifically, we integrate the classic Lagrangian mechanics with a deep autoencoder … Continue reading

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