Please use this identifier to cite or link to this item:
https://hdl.handle.net/10216/97808
Author(s): | P. C. Sousa I. S. Pinho F. T. Pinho M. S. N. Oliveira M. A. Alves |
Title: | Flow of a blood analogue solution through microfabricated hyperbolic contractions |
Issue Date: | 2009 |
Abstract: | 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 |
Subject: | Outras ciências da engenharia e tecnologias Other engineering and technologies |
Scientific areas: | Ciências da engenharia e tecnologias::Outras ciências da engenharia e tecnologias Engineering and technology::Other engineering and technologies |
URI: | https://hdl.handle.net/10216/97808 |
Source: | VipIMAGE 2009 - II ECCOMAS Thematic Conference on Computational Vision and Medical Image Processing |
Document Type: | Artigo em Livro de Atas de Conferência Internacional |
Rights: | restrictedAccess |
Appears in Collections: | FEUP - Artigo em Livro de Atas de Conferência Internacional |
Files in This Item:
File | Description | Size | Format | |
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57581.pdf Restricted Access | 2.36 MB | Adobe PDF | Request a copy from the Author(s) |
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