Real-time smoke simulation with improved turbulence by spatial adaptive vorticity confinement

Turbulence modeling has recently drawn many attentions in fluid animation to generate small-scale rolling features. Being one of the widely adopted approaches, vorticity confinement method re-injects lost energy dissipation back to the flow. However, previous works suffer from deficiency when large...

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Main Authors: HE, Shengfeng, WONG, Hon-Cheng, PANG, Wai-Man, WONG, Un-Hong
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Language:English
Published: Institutional Knowledge at Singapore Management University 2011
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Online Access:https://ink.library.smu.edu.sg/sis_research/8379
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spelling sg-smu-ink.sis_research-93822023-12-12T07:48:03Z Real-time smoke simulation with improved turbulence by spatial adaptive vorticity confinement HE, Shengfeng WONG, Hon-Cheng PANG, Wai-Man WONG, Un-Hong Turbulence modeling has recently drawn many attentions in fluid animation to generate small-scale rolling features. Being one of the widely adopted approaches, vorticity confinement method re-injects lost energy dissipation back to the flow. However, previous works suffer from deficiency when large vorticity coefficient ε is used, due to the fact that constant ε is applied all over the simulated domain. In this paper, we propose a novel approach to enhance the visual effect by employing an adaptive vorticity confinement which varies the strength with respect to the helicity instead of a user-defined constant. To further improve fine details in turbulent flows, we are not only applying our proposed vorticity confinement to low-resolution grid, but also on a finer grid to generate sub-grid level turbulence. Since the incompressible Navier-Stokes equations are solved only in low-resolution grid, this saves a significant amount of computation. Several experiments demonstrate that our method can produce realistic smoke animation with enhanced turbulence effects in real-time. 2011-04-12T07:00:00Z text https://ink.library.smu.edu.sg/sis_research/8379 info:doi/10.1002/cav.408 Research Collection School Of Computing and Information Systems eng Institutional Knowledge at Singapore Management University Fluid animation Fluid simulations Incompressible navier stokes equations Simulated domains Smoke simulation Turbulence effect Vorticity confinement Vorticity confinement method Databases and Information Systems
institution Singapore Management University
building SMU Libraries
continent Asia
country Singapore
Singapore
content_provider SMU Libraries
collection InK@SMU
language English
topic Fluid animation
Fluid simulations
Incompressible navier stokes equations
Simulated domains
Smoke simulation
Turbulence effect
Vorticity confinement
Vorticity confinement method
Databases and Information Systems
spellingShingle Fluid animation
Fluid simulations
Incompressible navier stokes equations
Simulated domains
Smoke simulation
Turbulence effect
Vorticity confinement
Vorticity confinement method
Databases and Information Systems
HE, Shengfeng
WONG, Hon-Cheng
PANG, Wai-Man
WONG, Un-Hong
Real-time smoke simulation with improved turbulence by spatial adaptive vorticity confinement
description Turbulence modeling has recently drawn many attentions in fluid animation to generate small-scale rolling features. Being one of the widely adopted approaches, vorticity confinement method re-injects lost energy dissipation back to the flow. However, previous works suffer from deficiency when large vorticity coefficient ε is used, due to the fact that constant ε is applied all over the simulated domain. In this paper, we propose a novel approach to enhance the visual effect by employing an adaptive vorticity confinement which varies the strength with respect to the helicity instead of a user-defined constant. To further improve fine details in turbulent flows, we are not only applying our proposed vorticity confinement to low-resolution grid, but also on a finer grid to generate sub-grid level turbulence. Since the incompressible Navier-Stokes equations are solved only in low-resolution grid, this saves a significant amount of computation. Several experiments demonstrate that our method can produce realistic smoke animation with enhanced turbulence effects in real-time.
format text
author HE, Shengfeng
WONG, Hon-Cheng
PANG, Wai-Man
WONG, Un-Hong
author_facet HE, Shengfeng
WONG, Hon-Cheng
PANG, Wai-Man
WONG, Un-Hong
author_sort HE, Shengfeng
title Real-time smoke simulation with improved turbulence by spatial adaptive vorticity confinement
title_short Real-time smoke simulation with improved turbulence by spatial adaptive vorticity confinement
title_full Real-time smoke simulation with improved turbulence by spatial adaptive vorticity confinement
title_fullStr Real-time smoke simulation with improved turbulence by spatial adaptive vorticity confinement
title_full_unstemmed Real-time smoke simulation with improved turbulence by spatial adaptive vorticity confinement
title_sort real-time smoke simulation with improved turbulence by spatial adaptive vorticity confinement
publisher Institutional Knowledge at Singapore Management University
publishDate 2011
url https://ink.library.smu.edu.sg/sis_research/8379
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