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3-D Visualization of Flow in Microscale Jet Impingement System

[+] Author Affiliations
Yoon Jin Won, Milnes David, Kenneth E. Goodson, Thomas W. Kenny

Stanford University, Stanford, CA

Evelyn N. Wang

Massachusetts Institute of Technology (MIT), Cambridge, MA

Paper No. ICNMM2009-82092, pp. 759-764; 6 pages
  • ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels
  • ASME 2009 7th International Conference on Nanochannels, Microchannels and Minichannels
  • Pohang, South Korea, June 22–24, 2009
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 978-0-7918-4349-9 | eISBN: 978-0-7918-3850-1
  • Copyright © 2009 by ASME


This paper presents our recent work on the reconstruction of three-dimensional (3-D) flow fields in a microscale jet impingement cooling flows. We use micron-resolution PIV to capture successive two-dimensional (2-D) “slices” of the flow field in a 3-D structure, and compare with models of flow near microscale jets. This approach is specifically constructed to determine the z-component of the flow velocities, which play a key role in enhancing heat transfer at the impingement surface. These new results will enable a predictive design capability for microjet impingement cooling structures for high power electronics.

Copyright © 2009 by ASME



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