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.
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ASME 2007 International Mechanical Engineering Congress and Exposition
November 11–15, 2007
Seattle, Washington, USA
Conference Sponsors:
- ASME
ISBN:
0-7918-4305-X
PROCEEDINGS PAPER
A Principle to Generate Flow for Thermal Convective Base Sensor Available to Purchase
Thien X. Dinh,
Thien X. Dinh
Ritsumeikan University, Kusatsu, Shiga, Japan
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Yoshifumi Ogami
Yoshifumi Ogami
Ritsumeikan University, Kusatsu, Shiga, Japan
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Thien X. Dinh
Ritsumeikan University, Kusatsu, Shiga, Japan
Yoshifumi Ogami
Ritsumeikan University, Kusatsu, Shiga, Japan
Paper No:
IMECE2007-43984, pp. 71-76; 6 pages
Published Online:
May 22, 2009
Citation
Dinh, TX, & Ogami, Y. "A Principle to Generate Flow for Thermal Convective Base Sensor." Proceedings of the ASME 2007 International Mechanical Engineering Congress and Exposition. Volume 11: Micro and Nano Systems, Parts A and B. Seattle, Washington, USA. November 11–15, 2007. pp. 71-76. ASME. https://doi.org/10.1115/IMECE2007-43984
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