The present study is the three-dimensional simulation of cooling control of
electronic component, by natural convection and mixed convection in a
cubical enclosure, filled with air. The heating square portion similar to
the integrated electronic device and releasing a constant flux is placed on
the right vertical wall of the enclosure. The same wall has, in its upper
part, an extractor, while the rest of the considered wall is adiabatic. Its
opposite wall has an opening maintained at a cold temperature. For low
temperatures, the cooling of the component is provided by natural
convection, however, in the case of strong temperature gradients, the
extractor, operating at variable velocity, allows the evacuation of the
dissipated heat. The cooling control of the component, the temperature
distribution as well as the flow of fluid in the cavity is studied according
to the governing parameters, namely the Rayleigh number, Ra and Reynolds
number Re. The obtained results show that the control cooling of the
electronic components has a great industrial interest compared to the
continuous cooling (ventilation), by an optimal choice of the governing
parameters and the material constituting the components.
Three-dimensional simulation of controlled cooling of electronic component by natural and mixed convection