Publication Type

Journal Article

Version

publishedVersion

Publication Date

2-2013

Abstract

Capturing fine details of turbulence on a coarse grid is one of the main tasks in real-time fluid simulation. Existing methods for doing this have various limitations. In this paper, we propose a new turbulence method that uses a refined second vorticity confinement method, referred to as robust second vorticity confinement, and a synthesis scheme to create highly turbulent effects from coarse grid. The new technique is sufficiently stable to efficiently produce highly turbulent flows, while allowing intuitive control of vortical structures. Second vorticity confinement captures and defines the vortical features of turbulence on a coarse grid. However, due to the stability problem, it cannot be used to produce highly turbulent flows. In this work, we propose a robust formulation to improve the stability problem by making the positive diffusion term to vary with helicity adaptively. In addition, we also employ our new method to procedurally synthesize the high-resolution flow fields. As shown in our results, this approach produces stable high-resolution turbulence very efficiently.

Keywords

Fluid simulations, Intuitive controls, Physically based modeling, Robust formulations, Smoke simulation, Vortical structures, Vorticity confinement, Vorticity confinement method

Discipline

Databases and Information Systems

Research Areas

Information Systems and Management

Publication

Computer Graphics Forum

Volume

32

Issue

1

First Page

27

Last Page

35

ISSN

0167-7055

Identifier

10.1111/j.1467-8659.2012.03228.x

Publisher

Wiley

Additional URL

https://doi.org/10.1111/j.1467-8659.2012.03228.x

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