A comparison was made between six turbulence models and experimental temperature profiles for the turbulent natural convection in a tilted open cubic cavity. The experimental setup consists of a cubic cavity of 1m by side with one vertical wall receiving a constant and uniform heat flux, whereas the remaining walls are thermally insulated. The thermal fluid is air and the aperture is facing the heated wall. The temperature profiles were obtained at different heights and depths and each one consists of 10 positions inside the cavity. A commercial computational fluid dynamic software was used for the simulation and different turbulence models of k-εt and k-ω families were evaluated against experimental data. The lowest absolute average percentage difference for the experimental and numerical temperature profiles was for the rk-εt model and the highest was for the sk-ω model.
|Number of pages
|International Communications in Heat and Mass Transfer
|Published - Oct 2014
Bibliographical noteFunding Information:
The authors wish to acknowledge the support of the National Science and Technology Council of the Mexican Republic , given through its graduate grants program.
- Natural convection
- Open cubic cavity
- Turbulence models