We have studied the phenomenon of squeeze film damping in a liquid with a microfabricated vibrating plate oscillating in its fundamental mode with out-of-plane motion. It is paramount that this phenomenon be understood so that proper choices can be made in terms of sensor design and packaging. The influences of plate-wall distance , effective plate radius , and fluid viscosity and density on squeeze film damping have been studied. We experimentally observe that the drag force is inertia dominated and scales as even when the plate is far away from the wall, a surprising but understandable result for a microfluidic device where the ratio of to the viscous penetration depth is large. We observe as well that the drag force scales as , which is inconsistent with squeeze film damping in the lubrication limit. These two cubic power laws arise due to the role of inertia in the high frequency limit.
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December 2010
Research Papers
Experimental Observation of Inertia-Dominated Squeeze Film Damping in Liquid
Antoine Fornari,
Antoine Fornari
Schlumberger-Doll Research
, 1 Hampshire Street, Cambridge, MA 02139
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Matthew Sullivan,
Matthew Sullivan
Schlumberger-Doll Research
, 1 Hampshire Street, Cambridge, MA 02139
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Hua Chen,
Hua Chen
Schlumberger-Doll Research
, 1 Hampshire Street, Cambridge, MA 02139
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Christopher Harrison,
Christopher Harrison
Schlumberger-Doll Research
, 1 Hampshire Street, Cambridge, MA 02139
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Kai Hsu,
Kai Hsu
Schlumberger Sugar Land Product Center
, 125 Industrial Boulevard, Sugar Land, TX 77478
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Frederic Marty,
Frederic Marty
Ecole Supérieure d’Ingénieurs en Electronique et Electrotechnique
, Noisy-Le-Grand 93162, France
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Bruno Mercier
Bruno Mercier
Ecole Supérieure d’Ingénieurs en Electronique et Electrotechnique
, Noisy-Le-Grand 93162, France
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Antoine Fornari
Schlumberger-Doll Research
, 1 Hampshire Street, Cambridge, MA 02139
Matthew Sullivan
Schlumberger-Doll Research
, 1 Hampshire Street, Cambridge, MA 02139
Hua Chen
Schlumberger-Doll Research
, 1 Hampshire Street, Cambridge, MA 02139
Christopher Harrison
Schlumberger-Doll Research
, 1 Hampshire Street, Cambridge, MA 02139
Kai Hsu
Schlumberger Sugar Land Product Center
, 125 Industrial Boulevard, Sugar Land, TX 77478
Frederic Marty
Ecole Supérieure d’Ingénieurs en Electronique et Electrotechnique
, Noisy-Le-Grand 93162, France
Bruno Mercier
Ecole Supérieure d’Ingénieurs en Electronique et Electrotechnique
, Noisy-Le-Grand 93162, FranceJ. Fluids Eng. Dec 2010, 132(12): 121201 (10 pages)
Published Online: December 22, 2010
Article history
Received:
April 14, 2009
Revised:
November 22, 2010
Online:
December 22, 2010
Published:
December 22, 2010
Citation
Fornari, A., Sullivan, M., Chen, H., Harrison, C., Hsu, K., Marty, F., and Mercier, B. (December 22, 2010). "Experimental Observation of Inertia-Dominated Squeeze Film Damping in Liquid." ASME. J. Fluids Eng. December 2010; 132(12): 121201. https://doi.org/10.1115/1.4003150
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