Thermal systems often involve multiple spatial and temporal scales, where transport information from one scale is relevant at others. Optimized thermal design of such systems and their control require approaches for their rapid simulation. These activities are of increasing significance due to the need for energy efficiency in the operation of these systems. Traditional full-field simulation methodologies are typically unable to resolve these scales in a computationally efficient manner. We handle the simulations of conjugate transport processes over selected length scales of interest via reduced order modeling through approaches such as compact finite elements, and proper orthogonal decomposition. In order to incorporate the influence of length scales beyond these, lumped models are invoked, with appropriate handshaking between the two frameworks. We illustrate the methodology through selected examples, with a focus on information technology systems.
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2010 14th International Heat Transfer Conference
August 8–13, 2010
Washington, DC, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-4943-9
PROCEEDINGS PAPER
Reduced Order Thermal Models of Multi-Scale Microsystems
Yogendra Joshi
Yogendra Joshi
Georgia Institute of Technology, Atlanta, GA
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Yogendra Joshi
Georgia Institute of Technology, Atlanta, GA
Paper No:
IHTC14-23373, pp. 519-536; 18 pages
Published Online:
March 1, 2011
Citation
Joshi, Y. "Reduced Order Thermal Models of Multi-Scale Microsystems." Proceedings of the 2010 14th International Heat Transfer Conference. 2010 14th International Heat Transfer Conference, Volume 8. Washington, DC, USA. August 8–13, 2010. pp. 519-536. ASME. https://doi.org/10.1115/IHTC14-23373
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