NDLI: A Principle to Generate Flow for Thermal Convective Base Sensor

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Thien, X. Dinh Ogami, Yoshifumi
Copyright Year	2007
Abstract	This paper presents a millimeter scaled device which can generate a closed flow with magnitude velocity of order of m/s. The device consisting of a piezoelectric pump connecting to a closed network channel through a specific nozzle is investigated by using computational fluid dynamics (CFD). With this device, numbers of laminar jet-flow are produced depending on the structure of the channel. In this study, four laminar jet-flows are demonstrated. If the amplitude of the vibration of PZT membrane is large enough, in a jet flow, the self-similar of the axial velocity (along jet direction) to the half-widths of the jet is observed. The two remains components of the flow are small compared with the axial component. Moreover, each jet flow can vibrate almost freely in three dimensions. Therefore, this device promises a rich application into the sensors based on a flow.
Starting Page	71
Ending Page	76
Page Count	6
File Format	PDF
ISBN	079184305X
DOI	10.1115/IMECE2007-43984
e-ISBN	0791838129
Volume Number	Volume 11: Micro and Nano Systems, Parts A and B
Conference Proceedings	ASME 2007 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2007-11-11
Publisher Place	Seattle, Washington, USA
Access Restriction	Subscribed
Subject Keyword	Micropumps Piezoelectrics Numerical simulation Microfluidics Membranes Vibration Computational fluid dynamics Computer simulation Pumps Jets Dimensions Nozzles Sensors Flow (dynamics)
Content Type	Text
Resource Type	Article

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