Fluid flow modelling of a micro-valve

Smal, Olivier; Raucent, Benoît; Jeanmart, Hervé

doi:10.1051/ijsmdo:2009011

Cited by 4 publications

(1 citation statement)

References 16 publications

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“…The design of the passive microfluidic devices described in the previous sections required two-dimensional (2D) or 3D FEM simulations of fluid flows fully coupled with structures undergoing large deformation, nonlinear material response, and contact conditions [58][59][60][61][62][63]. The non-well-defined Young's Modulus of some elastomeric materials (e.g., PDMS), coupled with the difficult adaptative meshing of high aspect ratio structures, are a challenge in computational engineering.…”

Section: Spring Valve With a Spiral Groove On A Moving Pistonmentioning

confidence: 99%

A Review of Passive Constant Flow Regulators for Microfluidic Applications

Chappel

2020

Applied Sciences

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This review gives an overview of passive constant flow regulators dedicated to microfluidic applications. Without external control and energy consumption, these devices deliver a constant flow rate regardless of pressure variations, making them very attractive for various microfluidic applications, including drug delivery, flow chemistry, point-of-care tests, or microdialysis. This technical review examines progress over the last three decades in the development of these flow regulators and focuses on the working principle, fabrication methods, performance, and potential applications.

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Section: Spring Valve With a Spiral Groove On A Moving Pistonmentioning

confidence: 99%

A Review of Passive Constant Flow Regulators for Microfluidic Applications

Chappel

2020

Applied Sciences

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Comparison of Ortho-planar Spring design optimization based on Linear Elastic and Hyper Elastic Materials

Graipaspong

Chanthasopeephan

2018

MATEC Web of Conferences

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Abstract. In this paper, compliant Ortho-planar spring was designed based on a three-dimensional topology optimization method. The computation was developed using MATLAB programming. The objective of this work was to apply dual method to design an Ortho-planar spring while the design should have minimum mass and at the same time satisfy a set of constrained displacement. Throughout this paper, we analyzed a method for designing an Ortho-planar spring using linear elastic material and hyperelastic material. The results showed that under small displacement conditions, the output displacement, maximum stress magnitude, and the maximum stress of linear elastic assumption and hyper-elastic material were relatively close to each other. However, the mass fraction and the layout as the result of the optimization process was different. As for larger displacement, the maximum stress of linear elastic material appeared 2.59 times higher than the maximum stress of the hyper-elastic material model. The topology optimization output based on linear material was invalid because the topology of the computed Ortho-planar spring was not appeared as a one-piece layout while the design based on nonlinear material looked promising.

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The Design of Ortho-Planar Spring for a Normally-Closed Gate Valve

Graipaspong

Chanthasopeephan

2018

2018 International Conference on Reconfigurable Mechanisms and Robots (ReMAR)

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Fluid flow modelling of a micro-valve

Cited by 4 publications

References 16 publications

A Review of Passive Constant Flow Regulators for Microfluidic Applications

A Review of Passive Constant Flow Regulators for Microfluidic Applications

Comparison of Ortho-planar Spring design optimization based on Linear Elastic and Hyper Elastic Materials

The Design of Ortho-Planar Spring for a Normally-Closed Gate Valve

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