Numerical Study of Diodicity Mechanism in Different Tesla-Type Microvalves



Título del documento: Numerical Study of Diodicity Mechanism in Different Tesla-Type Microvalves
Revista: Journal of applied research and technology
Base de datos: PERIÓDICA
Número de sistema: 000377675
ISSN: 1665-6423
Autores: 1
2
3
Instituciones: 1Urmia University, Department of Mechanical Engineering, Urmia, Azerbaiyán. Irán
2Sharif University of Technology, Department of Mechanical Engineering, Teherán. Irán
3Islamic Azad University, Department of Mechanical Engineering, Parand. Irán
Año:
Periodo: Dic
Volumen: 11
Número: 6
Paginación: 876-885
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés Microvalve is one of the most important components in microfluidic systems and micropumps. In this paper, three-dimensional incompressible flow through a Tesla-type microvalve is simulated using FLUENT computational fluid dynamic package. The flow is laminar and SIMPLE algorithm is used. The second-order upwind method is implemented for discretizing convective terms. The diodicity mechanism is investigated in detail for three different microvalves. Effect of several series Tesla-type microvalves on diodicity is also studied. The numerical analyses reveal that the mechanism of diodicity occurs at the T-junction and side channel. If inlet and outlet channels are eliminated, diodicity can be increased by 2. Pressure field analysis shows that the pressure drop is much severe at the junction of the reverse flow compared to the forward flow. The obtained numerical results are compared with those of experimental and a good agreement between them is noticed
Disciplinas: Ingeniería
Palabras clave: Ingeniería mecánica,
Microválvula de Tesla,
Diodicidad,
Campo de presión,
Campo de velocidades
Keyword: Engineering,
Mechanical engineering,
Tesla microvalve,
Diodicity,
Pressure fields,
Velocity field
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