DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Shin, Sung-Yong | - |
dc.contributor.advisor | 신성용 | - |
dc.contributor.advisor | Noh, Jun-Yong | - |
dc.contributor.advisor | 노준용 | - |
dc.contributor.author | Park, Jin-Ho | - |
dc.contributor.author | 박진호 | - |
dc.date.accessioned | 2011-12-13T05:26:32Z | - |
dc.date.available | 2011-12-13T05:26:32Z | - |
dc.date.issued | 2007 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=268747&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/33240 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 전산학전공, 2007. 8, [ vii, 55 ] | - |
dc.description.abstract | Fluids such as gases, fires, rains, and waters are essential parts for real-world scenes surrounding us. For the last two decades, visual fluid simulation has drawn great attentions in computer graphics. Well-developed techniques in computational fluid dynamics(CFD) have been adapted to creation of visual effects for feature films, television programs, and video games. Physically-based fluid animation is typically done by numerically solving the Navier-Stokes equations. In addition, a level set method is adopted to capture the time-varying interface between water and air. In the thesis, we introduce an approach to fluid simulation, by combining existing techniques. We address three issues: computational efficiency, interface capturing, and image synthesis. For computational efficiency, an LBM~(lattice Boltzmann method) is adopted as a numerical scheme for solving the Navier-Stokes equations. We adopt a stable LBM which can be applied to fluids of low viscosity. We also employ a unified method to handle a variety of boundary conditions. A diffuse-interface method is introduced to accurately capture the interface between multiphase flows. Unlike conventional level set methods, our method does not require a reinitialization process. Moreover, no fictitious particles are necessary for volume conservation. Given a still picture, TIP~(tour into the picture) generates a walk-through animation of a 3D scene reconstructed from the picture. We deal with water surface reflection while allowing foreground objects to move. Provided with a set of points on background objects and their corresponding points on the water surface, a non-linear optimization problem is solved for the 3D scene parameters with respect to the camera position, to automatically construct a reasonable 3D scene model. To synthesize a stream of reflected images on the water surface in accordance with the camera movement, we propose a novel image-based approach, which makes the best of the lim... | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | fluid simulation | - |
dc.subject | lattice Boltzmann method | - |
dc.subject | interface capture | - |
dc.subject | Cahn-Hilliard eqnation | - |
dc.subject | 유체 시뮬레이션 | - |
dc.subject | 격자 볼츠만 방법 | - |
dc.subject | 경계 포착 | - |
dc.subject | 칸-힐리어드 방정식 | - |
dc.subject | fluid simulation | - |
dc.subject | lattice Boltzmann method | - |
dc.subject | interface capture | - |
dc.subject | Cahn-Hilliard eqnation | - |
dc.subject | 유체 시뮬레이션 | - |
dc.subject | 격자 볼츠만 방법 | - |
dc.subject | 경계 포착 | - |
dc.subject | 칸-힐리어드 방정식 | - |
dc.title | A lattice boltzmann method for fast and accurate fluid simulation | - |
dc.title.alternative | 빠르고 정확한 유체 시뮬레이션을 위한 격자 볼츠만 방법 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 268747/325007 | - |
dc.description.department | 한국과학기술원 : 전산학전공, | - |
dc.identifier.uid | 020015127 | - |
dc.contributor.localauthor | Shin, Sung-Yong | - |
dc.contributor.localauthor | 신성용 | - |
dc.contributor.localauthor | Noh, Jun-Yong | - |
dc.contributor.localauthor | 노준용 | - |
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