Semi‐analytical Solid Boundary Conditions for Free Surface Flows

Chang, Yue Cune; Liu, Shusen; He, Xiaowei; Sheng, Li; Wang, Guoping

doi:10.1111/cgf.14132

Cited by 4 publications

(1 citation statement)

References 44 publications

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“…Bender et al 17 improved this method by precalculating a volume term. Chang et al 18 integrated computer‐aided design mesh file boundary representation into SPH by converting the volume integral to surface integral. Winchenbach et al 19 proposed a boundary integral method that supports adaptive SPH, which approximated the boundary integral locally at each particle with a plane based on the signed‐distance field (SDF) of the boundary object.…”

Section: Related Workmentioning

confidence: 99%

Spatial adaptivity with boundary refinement for smoothed particle hydrodynamics fluid simulation

Song

Wang

et al. 2023

Computer Animation & Virtual

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Fluid simulation is well-known for being visually stunning while computationally expensive. Spatial adaptivity can effectively ease the computational cost by discretizing the simulation space with varying resolutions. Adaptive methods nowadays mainly focus on the mechanism of refining the fluid surfaces to obtain more vivid splashes and wave effects. But such techniques hinder further performance gain under the condition where most of the vast fluid surface is tranquil. Moreover, energetic flow beneath the surface cannot be adequately captured with the interior of the fluid still being simulated under coarse discretization. This article proposes a novel boundary-distance based adaptive method for smoothed particle hydrodynamics fluid simulation. The signed-distance field constructed with respect to the coupling boundary is introduced to determine particle resolution in different spatial positions. The resolution is maximal within a specific distance to the boundary and decreases smoothly as the distance increases until a threshold is reached. The sizes of the particles are then adjusted towards the resolution via splitting and merging. Additionally, a wake flow preservation mechanism is introduced to keep the particle resolution at a high level for a period of time after a particle flows through the boundary object to prevent the loss of flow details. Experiments show that our method can refine fluid-solid coupling details more efficiently and effectively capture dynamic effects beneath the surface.

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Section: Related Workmentioning

confidence: 99%

Spatial adaptivity with boundary refinement for smoothed particle hydrodynamics fluid simulation

Song

Wang

et al. 2023

Computer Animation & Virtual

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Physics-based fluid simulation in computer graphics: Survey, research trends, and challenges

Wang,

Xu,

Liu

et al. 2024

Comp. Visual Media

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Physics-based fluid simulation has played an increasingly important role in the computer graphics community. Recent methods in this area have greatly improved the generation of complex visual effects and its computational efficiency. Novel techniques have emerged to deal with complex boundaries, multiphase fluids, gas–liquid interfaces, and fine details. The parallel use of machine learning, image processing, and fluid control technologies has brought many interesting and novel research perspectives. In this survey, we provide an introduction to theoretical concepts underpinning physics-based fluid simulation and their practical implementation, with the aim for it to serve as a guide for both newcomers and seasoned researchers to explore the field of physics-based fluid simulation, with a focus on developments in the last decade. Driven by the distribution of recent publications in the field, we structure our survey to cover physical background; discretization approaches; computational methods that address scalability; fluid interactions with other materials and interfaces; and methods for expressive aspects of surface detail and control. From a practical perspective, we give an overview of existing implementations available for the above methods.

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Semi-Analytical Surface Tension Model for Free Surface Flows

Menglik

Yao²,

Zheng³

et al. 2022

2022 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops (VRW)

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Semi‐analytical Solid Boundary Conditions for Free Surface Flows

Abstract: Figure 1: Dam breaking with a drilling platform. The proposed semi-analytical solid boundary handling approach is integrated into a projection-based method to support coupling between particles and boundary triangles. Velocities of particles are color coded.

Cited by 4 publications

References 44 publications

Spatial adaptivity with boundary refinement for smoothed particle hydrodynamics fluid simulation

Spatial adaptivity with boundary refinement for smoothed particle hydrodynamics fluid simulation

Physics-based fluid simulation in computer graphics: Survey, research trends, and challenges

Semi-Analytical Surface Tension Model for Free Surface Flows

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