Steady evaporating flow in rectangular microchannels.
Journal Article
·
· Proposed for publication in International Journal of Heat and Mass Transfer.
OSTI ID:990972
- Sandia National Laboratories, Albuquerque, NM
Analytical and numerical solutions are presented for steady evaporating flow in open microchannels having a rectangular cross section and a uniform depth. The flow, driven by the axial gradient of capillary pressure, generally consists of an entry region where the meniscus is attached to the top corners of the channel followed by a jump-like transition to a corner-flow region in which the meniscus progressively recedes into the bottom corners of the channel. Illustrative numerical solutions are used to guide the derivation of an easily applied analytical approximation for the maximum sustainable heat flux or capillary limit.
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 990972
- Report Number(s):
- SAND2005-1175J; IJHMAK; TRN: US201020%%644
- Journal Information:
- Proposed for publication in International Journal of Heat and Mass Transfer., Vol. 49, Issue 9-10; ISSN 0017-9310
- Country of Publication:
- United States
- Language:
- English
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