Approximate Air-Fluid Interactions for SPH
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Date
2017
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
Computing the forces acting from a surrounding air phase onto an SPH free-surface fluid is challenging. For full multiphase simulations the computational overhead is significant and stability issues due to the high density ratio may arise. In contrast, the air-fluid interactions can be approximated efficiently by employing a drag equation. Here, for plausible effects, the parameterization is important but challenging. We present an approach to calculate the parameters of the used drag equation in a physically motivated way. We approximate the deformation and occlusion of particles to determine their drag coefficient and exposed surface area. The resulting effects are validated by comparing them to the results of a multiphase SPH simulation. We further show the practicality of our approach by combining it with different types of SPH solvers and by simulating multiple, complex scenes.
Description
@inproceedings{10.2312:vriphys.20171081,
booktitle = {Workshop on Virtual Reality Interaction and Physical Simulation},
editor = {Fabrice Jaillet and Florence Zara},
title = {{Approximate Air-Fluid Interactions for SPH}},
author = {Gissler, Christoph and Band, Stefan and Peer, Andreas and Ihmsen, Markus and Teschner, Matthias},
year = {2017},
publisher = {The Eurographics Association},
ISBN = {978-3-03868-032-1},
DOI = {10.2312/vriphys.20171081}
}