This paper considers the conjugate problem of convective heat transfer in microchannel coupled to the conduction problem within the channel wall thickness. A Graetz-type simplification is assumed, for which the flow is dynamically developed, while being thermally developing. The boundary conditions for the problem are applied within the outer thickness of the channel wall, and both a constant heat flux condition and a constant are analyzed. The solution procedure is based on the Generalized Integral Transform Technique, by means of which, the temperature field within the fluid and solid wall are expressed in terms of orthogonal eigenseries expansions. The solution is implemented within a computational framework and verified against previously published results and analyses of simple limiting cases. After verification, the effects of the velocity profile and wall thickness on the Nusslet numb are investigated.
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ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting
August 3–7, 2014
Chicago, Illinois, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4627-8
PROCEEDINGS PAPER
Analysis of Conjugate Heat Transfer in Microchannels: Solution via Hybrid Analytical-Numerical Method Available to Purchase
N. R. Braga, Jr.,
N. R. Braga, Jr.
Universidade Federal Fluminense, Niterói, RJ, Brazil
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L. A. Sphaier
L. A. Sphaier
Universidade Federal Fluminense, Niterói, RJ, Brazil
Search for other works by this author on:
N. R. Braga, Jr.
Universidade Federal Fluminense, Niterói, RJ, Brazil
L. A. Sphaier
Universidade Federal Fluminense, Niterói, RJ, Brazil
Paper No:
ICNMM2014-21733, V001T12A010; 10 pages
Published Online:
December 17, 2014
Citation
Braga, NR, Jr., & Sphaier, LA. "Analysis of Conjugate Heat Transfer in Microchannels: Solution via Hybrid Analytical-Numerical Method." Proceedings of the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting. ASME 2014 12th International Conference on Nanochannels, Microchannels and Minichannels. Chicago, Illinois, USA. August 3–7, 2014. V001T12A010. ASME. https://doi.org/10.1115/ICNMM2014-21733
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