Activities per year
Abstract
This work applies topology optimisation to the design of passive coolers for light-emitting diode (LED) lamps. The heat sinks are cooled by the natural convection currents arising from the temperature difference between the LED lamp and the surrounding air. A large scale parallel computational framework is used to perform topology optimisation for minimising the temperature of the LED package subjected to highly convection-dominated heat transfer. The governing equations are the steady-state incompressible Navier-Stokes equations coupled to the thermal convection-diffusion equation through the Bousinessq approximation. The fully coupled non-linear multiphysics system is discretised using stabilised trilinear equal-order finite elements and solved using Newtons method and a multigrid-preconditioned iterative method. Topology optimisation is carried out using the density-based approach. The optimisation results show interesting features that are currently being incorporated into industrial designs for enhanced passive cooling abilities.
Original language | English |
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Title of host publication | Proceedings of WCSMO-11 |
Number of pages | 5 |
Publication date | 2015 |
Publication status | Published - 2015 |
Externally published | Yes |
Event | 11th World Congress of Structural and Multidisciplinary Optimization - University of Sydney, Sydney, Australia Duration: 7. Jun 2015 → 12. Jun 2015 http://www.aeromech.usyd.edu.au/WCSMO2015/index.html |
Conference
Conference | 11th World Congress of Structural and Multidisciplinary Optimization |
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Location | University of Sydney |
Country/Territory | Australia |
City | Sydney |
Period | 07/06/2015 → 12/06/2015 |
Internet address |
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Dive into the research topics of 'Topology optimisation of passive coolers for light-emitting diode lamps'. Together they form a unique fingerprint.Related activities
- 1 Membership of commitees, commissions, boards, councils, associations, organisations, or similar
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International Society of Structural and Multidisciplinary Optimization (ISSMO) (External organisation)
Alexandersen, J. (Member)
May 2013 → …Activity: Membership › Membership of commitees, commissions, boards, councils, associations, organisations, or similar
Related prizes
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ISSMO/Springer Prize for Young Scientist 2015
Alexandersen, J. (Recipient), Sept 2015
Prize: Prizes, scholarships, distinctions