title: Digital marbling: a multiscale fluid model.
abstract: This paper presents a multiscale fluid model based on mesoscale dynamics and viscous fluid equations as a generic tool for digital marbling purposes. The model uses an averaging technique on the adaptation of a stochastic mesoscale model to obtain the effect of fluctuations at different levels. It allows various user controls to simulate complex flow behaviors as in traditional marbling techniques, as well as laminar and turbulent flows. Material transport is based on an improved advection solution to be able to match the highly detailed, sharp fluid interfaces in marbling patterns. In the transport model, two reaction models are introduced to create different effects and to simulate density fluctuations.
authors.affiliation: University of Alberta, Department of Computing Science, Edmonton, Canada. ruyam_acar@yahoo.com
authors.forename: Rüyam
authors.initials: R
authors.lastname: Acar
authors.forename: Pierre
authors.initials: P
authors.lastname: Boulanger
mesh_terms: D000465:Algorithms; D003196:Computer Graphics; D003198:Computer Simulation; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D016247:Information Storage and Retrieval / Q000379:methods*; D008962:Models, Theoretical; D012212:Rheology / Q000379:methods*; D014584:User-Computer Interface