A unified particle model for fluid-solid interactions

We present a new method for the simulation of melting and solidification in a unified particle model. Our technique uses the Smoothed Particle Hydrodynamics (SPH) method for the simulation of liquids, deformable as well as rigid objects, which eliminates the need to define an interface for coupling...

Full description

Saved in:
Bibliographic Details
Published in:Computer animation and virtual worlds Vol. 18; no. 1; pp. 69 - 82
Main Authors: Solenthaler, Barbara, Schläfli, Jürg, Pajarola, Renato
Format: Journal Article
Language:English
Published: Chichester, UK John Wiley & Sons, Ltd 01.02.2007
Subjects:
fluids
melting
physically based simulation
smoothed particle hydrodynamics
solidification
solids
ISSN:1546-4261, 1546-427X
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We present a new method for the simulation of melting and solidification in a unified particle model. Our technique uses the Smoothed Particle Hydrodynamics (SPH) method for the simulation of liquids, deformable as well as rigid objects, which eliminates the need to define an interface for coupling different models. Using this approach, it is possible to simulate fluids and solids by only changing the attribute values of the underlying particles. We significantly changed a prior elastic particle model to achieve a flexible model for melting and solidification. By using an SPH approach and considering a new definition of a local reference shape, the simulation of merging and splitting of different objects, as may be caused by phase change processes, is made possible. In order to keep the system stable even in regions represented by a sparse set of particles we use a special kernel function for solidification processes. Additionally, we propose a surface reconstruction technique based on considering the movement of the center of mass to reduce rendering errors in concave regions. The results demonstrate new interaction effects concerning the melting and solidification of material, even while being surrounded by liquids. Copyright © 2007 John Wiley & Sons, Ltd.
Bibliography:ark:/67375/WNG-7XF1D8HM-P
istex:0144A4916ED9D29FC755C5BA484DE3BBC6C37E57
ArticleID:CAV162
ISSN:1546-4261
1546-427X
DOI:10.1002/cav.162