Computational fluid dynamics simulation of the turbulence models in the tested section on wind tunnel
Ismail, Johanis John, Erlanda Augupta Pane, Budhi Muliawan Suyitno, Gama Harta Nugraha Nur Rahayu, Damora Rhakasywi, Agri Suwandi
Abstract
The application of the computational fluid dynamic method with several turbulence models to obtain the right and ideal position of the test object in the test room has been carried out by analyzing the pattern of velocity distribution, pressure distribution and intensity of fluid turbulence in an open type subsonic wind tunnel test chamber. The reason is that the wind tunnel is made not following the usual design procedures, but it is more prioritizes the design of the test chamber and other parts. The turbulence model used is the k-∊ model, k-ω model, RSM model, SST k-ω model, and LES model. The simulation results give the lowest test room turbulence intensity given by the k-∊ model which is 0.8% while the highest is given by the LES model of 11%.