Experimental characterisation of a novel viscoelastic rectifier design

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Kristian Ejlebjerg Jensen (Autor) Outra; Peter Szabo (Autor) Outra; Fridolin Okkels (Autor) Outra; Alves, MA (Autor) FEUP

Revista

Título: Biomicrofluidics

Vol. 6

Página Final: 044112

ISSN: 1932-1058

Editora: American Institute of Physics

Indexação

ISI Web of Knowledge - 13 Citações

ISI Web of Science

Scopus - 16 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Nanotecnologia

CORDIS: Ciências Tecnológicas > Engenharia ; Ciências Tecnológicas > Engenharia > Microengenharia

Outras Informações

ID Authenticus: P-002-2NE

DOI: 10.1063/1.4769781

Abstract (EN): A planar microfluidic system with contractions and obstacles is characterized in terms of anisotropic flow resistance due to viscoelastic effects. The working mechanism is illustrated using streak photography, while the diodicity performance is quantified by pressure drop measurements. The point of maximum performance is found to occur at relatively low elasticity levels, with diodicity around 3.5. Based on a previously published numerical work [Ejlebjerg , Appl. Phys. Lett. 100, 234102 (2012)], 2D simulations of the FENE-CR differential constitutive model are also presented, but limited reproducibility and uncertainties of the experimental data prevent a direct comparison at low elasticity, where the flow is essentially two-dimensional. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4769781]

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8