Flow of a blood analogue solution through microfabricated hyperbolic contractions

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2009

Autores

P. C. Sousa (Autor) FEUP; I. S. Pinho (Autor) FEUP; F. T. Pinho (Autor) FEUP; M. S. N. Oliveira (Autor) FEUP; M. A. Alves (Autor) FEUP

Ata de Conferência Internacional

Título: VipIMAGE 2009 - II ECCOMAS Thematic Conference on Computational Vision and Medical Image Processing

Páginas: 361-365

VipIMAGE 2009 - II ECCOMAS Thematic Conference on Computational Vision and Medical Image Processing

Porto, Portugal, 14 a 16 de Outubro de 2009

Indexação

ISI Web of Knowledge - 1 Citação

ISI Web of Science

Scopus - 4 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Outras ciências da engenharia e tecnologias

Outras Informações

ID Authenticus: P-00K-DTT

DOI: 10.1007/978-94-007-0011-6_15

Abstract (EN): In this work, the flow of a blood analogue solution past a microfabricated hyperbolic contraction followed by an abrupt expansion was studied. The shape of the contraction was selected in order to provide a nearly constant acceleration of the fluid at the centerline of the microgeometry. The flow patterns of the blood analogue solution and of a Newtonian reference fluid were captured using streak line imaging. The flow visualization results illustrate the complex behavior of the blood analogue solution flowing through the microgeometry, which is distinct of that observed for Newtonian fluid flow. For the blood analogue solution, elastic-driven effects are observed with vortical structures emerging upstream of the contraction, which are absent in Newtonian fluid flow. In this latter case the flow also develops inertia-driven instabilities downstream of the expansion. In addition, for the blood analogue solution at high flow rates the competing effects of inertia and elasticity lead to complex flow patterns and unstable flow develops

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4