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Measurements of Air Flow Velocities in Microchannels Using Particle Image Velocimetry

Doucet, Daniel Joseph
http://rave.ohiolink.edu/etdc/view?acc_num=case1333675768

Abstract Details

2012, Master of Sciences (Engineering), Case Western Reserve University, EMC - Aerospace Engineering.
The knowledge of the flow field in microchannels is becoming increasingly important with the advent of the ionic wind pump and other microscale heat removal devices. The understanding of this flow field will lead to more effective and improved designs. Non-intrusive microscale particle image velocimetry (PIV) utilizing a microscopic objective lens is used to obtain the velocity field in microchannels. The scales of these channels are similar to those encountered in such devices as the ionic wind pump. Microchannels with dimensions ranging from 0.8 mm to 2 mm are used. Computational fluid dynamics (CFD) models are used to replicate each test, with varying inlet conditions and mesh densities. The CFD flow fields are compared to the PIV results for validation purposes, with relative errors between CFD and PIV typically between 2% and 10%. The agreement between the experimental data and computational results ranged from acceptable to excellent, validating this method. The channel with lowest aspect ratio consistently showed the largest agreement between experimental and numerical values.
Jaikrishnan R. Kadambi, PhD (Advisor)
J. Iwan D. Alexander, PhD (Committee Member)
Vikas Prakash, PhD (Committee Member)
69 p.
Aerospace Engineering; Fluid Dynamics; Mechanical Engineering
particle image velocimetry; computational fluid dynamics; microchannel; experimental fluid mechanics

Recommended Citations

Citations

  • Doucet, D. J. (2012). Measurements of Air Flow Velocities in Microchannels Using Particle Image Velocimetry [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1333675768

    APA Style (7th edition)

  • Doucet, Daniel. Measurements of Air Flow Velocities in Microchannels Using Particle Image Velocimetry. 2012. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1333675768.

    MLA Style (8th edition)

  • Doucet, Daniel. "Measurements of Air Flow Velocities in Microchannels Using Particle Image Velocimetry." Master's thesis, Case Western Reserve University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=case1333675768

    Chicago Manual of Style (17th edition)

case1333675768
1,296
© 2012, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.
Release 3.2.12