You are viewing an old version of this page. View the current version.

Compare with Current View Page History

« Previous Version 9 Next »

Problem Specification

Consider the heat sink shown in gray in the image below. It is used to dissipate the heat from an LED and a thin interface layer shown in green below. The CAD file containing the LED + interface + heat sink can be downloaded here.


  • LED and heat sink are made of Aluminum: k=186 W/(m C)
  • For the interface: k=48 W/(m C)
  • Heat generated by LED: 3.3×107 W/m3  
  • Ambient temperature: 40 C
  • Convection coefficient for heat sink surfaces exposed to air: 14 W/(m2 C)

Find temperature and heat flux distribution in the model. Verify results by checking overall energy conservation and refining the mesh.


Pre-Analysis


Model Setup


Numerical Results



Go to all ANSYS Learning Modules

  • No labels