A parametric study was performed to reveal the hydrodynamic processes controlling crossflow over MEMS-based micro pin fin devices. Pressure drop experiments were conducted and used to obtain friction factors on a wide range of micro pin fin devices for various flow conditions and geometrical configurations, including pin fin height-to-diameter aspect ratios, spacings, and shapes. The acquired data suggests that the device geometry is the key parameter dictating friction factor trends and magnitude along with the Reynolds number. Additionally, friction factor data has shown that correlations based on experimental results performed on conventional scale tube bundles do not accurately predict the trends under working conditions pertaining to microfluidic systems.
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August 2011
Research Papers
Hydrodynamic Characteristics of Crossflow over MEMS-Based Pillars
Ali Koşar,
Ali Koşar
Mechatronics Engineering Program,
SabancıUniversity
, Orhanlı, Tuzla, Istanbul, 34956 Turkey
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Brandon Schneider,
Brandon Schneider
Department of Mechanical,
Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute
, Troy, NY 12180
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Yoav Peles
Yoav Peles
Department of Mechanical,
Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute
, Troy, NY 12180
Search for other works by this author on:
Ali Koşar
Mechatronics Engineering Program,
SabancıUniversity
, Orhanlı, Tuzla, Istanbul, 34956 Turkey
Brandon Schneider
Department of Mechanical,
Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute
, Troy, NY 12180
Yoav Peles
Department of Mechanical,
Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute
, Troy, NY 12180J. Fluids Eng. Aug 2011, 133(8): 081201 (11 pages)
Published Online: August 16, 2011
Article history
Received:
January 23, 2010
Accepted:
May 11, 2011
Online:
August 16, 2011
Published:
August 16, 2011
Citation
Koşar, A., Schneider, B., and Peles, Y. (August 16, 2011). "Hydrodynamic Characteristics of Crossflow over MEMS-Based Pillars." ASME. J. Fluids Eng. August 2011; 133(8): 081201. https://doi.org/10.1115/1.4004366
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