Liangwang Ruan

ORCID: 0000-0003-0803-1429
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About
Contact & Profiles
Research Areas
  • Computer Graphics and Visualization Techniques
  • Fluid Dynamics and Heat Transfer
  • 3D Shape Modeling and Analysis
  • Adhesion, Friction, and Surface Interactions
  • Surface Modification and Superhydrophobicity
  • Granular flow and fluidized beds
  • Lattice Boltzmann Simulation Studies
  • Computational Geometry and Mesh Generation
  • Elasticity and Material Modeling

Peking University
2021-2024

We propose a novel three-way coupling method to model the contact interaction between solid and fluid driven by strong surface tension. At heart of our physical is thin liquid membrane that simultaneously couples both volume rigid objects, facilitating accurate momentum transfer, collision processing, tension calculation. This implemented numerically under hybrid Eulerian-Lagrangian framework where modelled as simplicial mesh simulated on background Cartesian grid. devise monolithic solver...

10.1145/3450626.3459862 article EN ACM Transactions on Graphics 2021-07-19

This paper presents a novel approach to simulating surface tension flow within position-based dynamics (PBD) framework. We enhance the conventional PBD fluid method in terms of its representation and constraint enforcement furnish support for simulation interfacial phenomena driven by strong contact dynamics. The key component our framework is an on-the-fly local meshing algorithm build geometry around each particle. Based on this mesh structure, we devise constraints that can be integrated...

10.1145/3550454.3555476 article EN ACM Transactions on Graphics 2022-11-30

This paper introduces a novel physically-based vortex fluid model for films, aimed at accurately simulating cascading vortical structures on deforming thin films. Central to our approach is mechanism decomposing the film's tangential velocity into circulation and dilatation components. These components are then evolved using hybrid particle-mesh method, enabling effective reconstruction of three-dimensional velocities seamlessly integrating surfactant thickness dynamics unified framework. By...

10.1145/3658165 article EN ACM Transactions on Graphics 2024-07-19

We propose MiNNIE, a simple yet comprehensive framework for real-time simulation of nonlinear near-incompressible elastics. To avoid the common volumetric locking issues at high Poisson's ratios linear finite element methods (FEM), we build MiNNIE upon mixed FEM and further incorporate pressure stabilization term to ensure excellent convergence multigrid solvers. Our strategy injects bounded influence on nodal displacement which can be eliminated using quasiNewton method. has specially...

10.1145/3687758 article EN ACM Transactions on Graphics 2024-11-19
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