Particle-based simulation and visualization of fluid flows through porous media

Bayraktar, Serkan; Güdükbay, Uğur; Özgüç, Bülent

doi:10.1007/s12650-010-0041-2

Cited by 5 publications

(5 citation statements)

References 32 publications

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“…To further improve stability, Lin incorporated the saturation of each boundary particle into the density computation of the fluid particles at the boundary in the follow‐up studies . By improving the widely used technique of employing stationary boundary particles to satisfy nonpenetration and no‐slip conditions, Bayraktar et al proposed an SPH‐based method of fluid simulation, where boundary conditions are designed in such a way that fluid flow through porous media, pipes, and chokes can be realistically simulated. On the basis of Darcy's law, which describes the flow of water in porous materials, several researchers have realistically simulated the wetting phenomena in grid‐ or particle‐based fluid solvers.…”

Section: Related Workmentioning

confidence: 99%

Position‐based simulation of cloth wetting phenomena

Shao

Wang

2017

Computer Animation & Virtual

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Because of the advantages of high stability and efficiency, position‐based dynamics (PBD) is becoming increasingly popular with game developers and filmmakers. On the basis of the unified adaptive PBD, we present a nonlinear cloth wetting model to simulate visually realistic cloth wetting phenomena, which takes into account the influence of gravity on all aspects of the wetting process. Specifically, in order to model water diffusion in unsaturated cloth, we propose a novel nonlinear saturation constraint of cloth particles, which considers the influence of gravity, and then solve it using PBD to stably smooth the saturation field. The dynamic behaviors of the cloth and the water–cloth coupling during the cloth wetting process are modeled by using PBD. Moreover, a water absorption model and a water emission model are proposed to simulate the unsaturated cloth absorbing water and the oversaturated cloth draining water under the influence of gravity, respectively. The experimental results demonstrate that our novel wetting model provides an efficient way to model more stable and realistic cloth wetting phenomena using PBD.

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Section: Related Workmentioning

confidence: 99%

Position‐based simulation of cloth wetting phenomena

Shao

Wang

2017

Computer Animation & Virtual

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“…[15]. In this research the effect of adhesion is required to si- The appliance of SPH model to avalanching is described in Tsuda et.al's work [5].…”

Section: Smoothed Particle Hydrodynamicsmentioning

confidence: 99%

“…To help achieve realistic scenes, knowledge in physics and mathematics has provided an outstanding establishment to create simulations that pertain to nature's laws. Combined with computational mathematics and advanced hardware acceleration possibilities, the research has brought numerous methods, such as particle systems [1] or grid-based systems [2], to define the base material of a natural event, such as the motion of flowing water. While much exemplary work has emerged about nature's most common happenings, avalanching of snow has rarely been the subject to be simulated as a whole.…”

Section: Introductionmentioning

confidence: 99%

Simulation of a flowing snow avalanche using molecular dynamics

Güçer¹,

Özgüç²

2014

Turk J Elec Eng & Comp Sci

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ii I certify that I have read this thesis and that in my opinion it is fully adequate, in scope and in quality, as a thesis for the degree of Master of Science.Prof. Dr. Bülent Özgüç (Supervisor) I certify that I have read this thesis and that in my opinion it is fully adequate, in scope and in quality, as a thesis for the degree of Master of Science. This thesis presents an approach for modeling and simulation of a flowing snow avalanche, which is formed of dry and liquefied snow that slides down a slope, by using molecular dynamics and discrete element method. A particle system is utilized as a base method for the simulation and marching cubes with real-time shaders are employed for rendering. A uniform grid based neighbor search algorithm is used for collision detection for inter-particle and particle-terrain interactions. A mass-spring model of collision resolution is employed to mimic compressibility of snow and particle attraction forces are put into use between particles and terrain surface. In order to achieve greater performance, general purpose GPU language and multi-threaded programming is utilized for collision detection and resolution. The results are displayed with different combinations of rendering methods for the realistic representation of the flowing avalanche.Keywords: flowing avalanche simulation, snow, discrete element method, particle system, marching cubes, parallel computing, GPU, CUDA, shared memo-

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“…adopted the Smoothed Particle Hydrodynamics (SPH) method to achieve the realistic simulation of debris flow. Related to debris, the granular flow based on particle models and the physically based fluid simulation methods based on SPH related to flows in porous media are presented. However, due to the huge number of these particles full of all fluid volume, the rendering speed is not very high.…”

Section: Related Workmentioning

confidence: 99%

Fast animation of debris flow with mixed adaptive grid refinement

Wang

Zhang

Kong

et al. 2013

Computer Animation & Virtual

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Animating debris flow is one of the most challenging tasks in computer graphics, because of its complex dynamic mechanism and the interaction between flows and solids in so large scale region. The difficulty focuses on how to resolve the contradiction between lower computational load and higher request of animating quality. A highly effective method of modeling and animating of debris flow with adaptive grid is presented. First, the debris flow is modeled as Bingham plastic fluid with view-dependent adaptive grid that is adopted to model the flow volume, and the boundless grids can cover the large scale region of debris flow. Then the mixed grids are built for confluent flows, and the two-way coupling interaction between flows and environment is considered. After extracting the debris flow surface, adaptive surface tension combining wave particles equation is used to enhance the details and sprays are generated by particles considering the interaction between two fluid volumes. Finally, different dynamic realistic scenes with debris flow are successfully animating at interactive rates.

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Particle-based simulation and visualization of fluid flows through porous media

Cited by 5 publications

References 32 publications

Position‐based simulation of cloth wetting phenomena

Position‐based simulation of cloth wetting phenomena

Simulation of a flowing snow avalanche using molecular dynamics

Fast animation of debris flow with mixed adaptive grid refinement

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