| Topological design of heat dissipating structure with forced convective heat transfer
Gil Ho Yoon
The Journal of Mechanical Science and Technology, vol. 24, no. 6, pp.1225-1233, 2010
Abstract : This paper discusses the use of the topology optimization formulation for designing a heat dissipating structure that utilizes forced
convective heat transfer. In addition to forced convection, there is also natural convection due to natural buoyancy forces induced by
local heating inside fluid. In the present study, the temperature distribution due to forced convection, neglecting buoyancy and viscous
dissipation inside fluid, was simulated and optimized. In order to analyze the heat transfer equation with forced convective heat loss and
the Navier-Stokes equation, a common sequential computational procedure for this thermo/hydraulic characteristic was implemented. For
topology optimization, four material properties were interpolated with respect to spatially defined density design variables: the inverse
permeability in the Navier-Stokes equation, the conductivity, density, and the specific heat capacity of the heat transfer equation. From
numerical examples, it was found that the balance between the conduction and convection of fluid is of central importance to the design
of heat dissipating structures.
Keyword : Topology optimization; Forced convective heat transfer; Navier-Stokes equation; Heat transfer problem |
