Design of a cross-slot flow channel for extensional viscosity measurements

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2008

Autores

Manuel A. Alves (Autor) FEUP

Ata de Conferência Internacional

Título: XVTH INTERNATIONAL CONGRESS ON RHEOLOGY - THE SOCIETY OF RHEOLOGY 80TH ANNUAL MEETING, PTS 1 AND 2

Páginas: 240-242

15th International Congress on Rheology/80th Annual Meeting of the Society-of-Rheology

Monterey, CA, AUG 03-08, 2008

Indexação

ISI Proceedings

ISI Web of Knowledge - 13 Citações

Scopus - 15 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Física

Outras Informações

ID Authenticus: P-004-52N

DOI: 10.1063/1.2964648

Abstract (EN): In this work we present an algorithm for optimal shape design of viscoelastic fluid flow. A finite-volume viscoelastic code is coupled with the CONDOR optimizer [1] and an automated mesh generation and adaptation procedure, in order to find the shape of a given flow geometry, capable of achieving optimal performance. As an example of application we design an optimized cross-slot microfluidic chip appropriate for measuring the extensional viscosity of dilute polymeric solutions. The microfluidic cross-slot flow geometry is able to generate homogeneous elongational flow with regions of constant strain-rate, a requirement to produce meaningful rheological measurements.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 3