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  • Επιστημονικές Δημοσιεύσεις Μελών ΠΘ (ΕΔΠΘ)
  • Δημοσιεύσεις σε περιοδικά, συνέδρια, κεφάλαια βιβλίων κλπ.
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A novel experimental setup for gas microflows

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Author
Pitakarnnop, J.; Varoutis, S.; Valougeorgis, D.; Geoffroy, S.; Baldas, L.; Colin, S.
Date
2010
DOI
10.1007/s10404-009-0447-0
Keyword
Microfluidics
Rarefied gas flow
Experimental setup
Micro flow rate
measurement
Discrete velocity method
Slip flow
Transition flow
FLOW-RATE MEASUREMENTS
RAREFIED-GAS
MASS-FLOW
RECTANGULAR
MICROCHANNELS
GASEOUS FLOWS
CHANNELS
RANGE
Nanoscience & Nanotechnology
Instruments & Instrumentation
Physics,
Fluids & Plasmas
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Abstract
A new experimental setup for flow rate measurement of gases through microsystems is presented. Its principle is based on two complementary techniques, called droplet tracking method and constant-volume method. Experimental data on helium and argon isothermal flows through rectangular microchannels are presented and compared with computational results based on a continuum model with second-order boundary conditions and on the linearized kinetic BGK equation. A very good agreement is found between theory and experiment for both gases, assuming purely diffuse accommodation at the walls. Also, some experimental data for a binary mixture of monatomic gases are presented and compared with kinetic theory based on the McCormack model.
URI
http://hdl.handle.net/11615/32289
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  • Δημοσιεύσεις σε περιοδικά, συνέδρια, κεφάλαια βιβλίων κλπ. [9728]
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Η δικτυακή πύλη της Ευρωπαϊκής Ένωσης
Ψηφιακή Ελλάδα
ΕΣΠΑ 2007-2013