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Conformation constraints for efficient viscoelastic fluid simulation

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Conformation constraints for efficient viscoelastic fluid simulation

dc.contributor.author	Barreiro, Héctor
dc.contributor.author	García-Fernández, Ignacio
dc.contributor.author	Alduán, Iván
dc.contributor.author	Otaduy, Miguel A.
dc.date.accessioned	2017-11-23T14:56:10Z
dc.date.available	2017-11-23T14:56:10Z
dc.date.issued	2017
dc.identifier.citation	Barreiro, Héctor García Fernández, Ignacio Alduán, Iván Otaduy, Miguel A. 2017 Conformation constraints for efficient viscoelastic fluid simulation ACM Transactions on Graphics 36 6 221:1 221:11
dc.identifier.uri	http://hdl.handle.net/10550/63286
dc.description.abstract	The simulation of high viscoelasticity poses important computational challenges. One is the difficulty to robustly measure strain and its derivatives in a medium without permanent structure. Another is the high stiffness of the governing differential equations. Solutions that tackle these challenges exist, but they are computationally slow. We propose a constraint-based model of viscoelasticity that enables efficient simulation of highly viscous and viscoelastic phenomena. Our model reformulates, in a constraint-based fashion, a constitutive model of viscoelasticity for polymeric fluids, which defines simple governing equations for a conformation tensor. The model can represent a diverse palette of materials, spanning elastoplastic, highly viscous, and inviscid liquid behaviors. In addition, we have designed a constrained dynamics solver that extends the position-based dynamics method to handle efficiently both position-based and velocity-based constraints. We show results that range from interactive simulation of viscoelastic effects to large-scale simulation of high viscosity with competitive performance.
dc.language.iso	eng
dc.relation.ispartof	ACM Transactions on Graphics, 2017, vol. 36, num. 6, p. 221:1-221:11
dc.subject	Viscoelasticitat
dc.subject	Simulació per ordinador
dc.title	Conformation constraints for efficient viscoelastic fluid simulation
dc.type	journal article	es_ES
dc.date.updated	2017-11-23T14:56:10Z
dc.identifier.doi	10.1145/3130800.3130854
dc.identifier.idgrec	120530
dc.rights.accessRights	open access	es_ES