Numerical and experimental study of cellular structures as a heat dissipation media

High heat flux generation in electronic devices demands new modes, methods and structures to dissipate heat effectively. We investigate the thermal performance of cellular structures using computational fluid dynamics (CFD) and obtained an optimal cellular structure for effective heat dissipation. T...

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Bibliographic Details
Published in:Heat and mass transfer 2019-02, Vol.55 (2), p.501-511
Main Authors: Tariq, Hussain Ahmed, Israr, Asif, Khan, Yasir Imtiaz, Anwar, Muhammad
Format: Article
Language:English
Subjects:
Aerodynamics
Cellular structure
Computational fluid dynamics
Computer simulation
Dynamic structural analysis
Electronic devices
Engineering
Engineering Thermodynamics
Heat
Heat and Mass Transfer
Heat flux
Heat transfer
Industrial Chemistry/Chemical Engineering
Original
Thermodynamics
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Summary:High heat flux generation in electronic devices demands new modes, methods and structures to dissipate heat effectively. We investigate the thermal performance of cellular structures using computational fluid dynamics (CFD) and obtained an optimal cellular structure for effective heat dissipation. Then, we validate our numerical results with experimental results obtained using optimized cellular structure. We found the minimum base temperature for the optimized cellular structure to be 43.6 °C and 47.4 °C numerically and experimentally respectively at inlet velocity of 10 m/s. We carried out experiments and simulations at the heat flux of 35,503 W/m 2 . We found a close agreement between numerical and experimental results with an error of 8.71% for the base temperature. Previously the best base temperatures were reported to be 55 °C and 40.5 °C using air and water respectively [1, 2].
ISSN:0947-7411
1432-1181
DOI:10.1007/s00231-018-2439-7