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Abstract
This work applies topology optimisation to the design of passive coolers for lightemitting 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 convectiondominated heat transfer. The governing equations are the steadystate incompressible NavierStokes equations coupled to the thermal convectiondiffusion equation through the Bousinessq approximation. The fully coupled nonlinear multiphysics system is discretised using stabilised trilinear equalorder finite elements and solved using Newtons method and a multigridpreconditioned iterative method. Topology optimisation is carried out using the densitybased approach. The optimisation results show interesting features that are currently being incorporated into industrial designs for enhanced passive cooling abilities.
Original language  English 

Title of host publication  Proceedings of WCSMO11 
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 

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 lightemitting diode lamps'. Together they form a unique fingerprint.Related activities
 1 Membership of commitees, commissions, boards, councils, associations, organisations, or similar

International Society of Structural and Multidisciplinary Optimization (ISSMO) (External organisation)
Joe Alexandersen (Member)
May 2013 → …Activity: Membership › Membership of commitees, commissions, boards, councils, associations, organisations, or similar
Related prizes

ISSMO/Springer Prize for Young Scientist 2015
Alexandersen, Joe (Recipient), Sept 2015
Prize: Prizes, scholarships, distinctions