Validación del software libre de cálculo fluidodinámico openfoam aplicado a flujo incompresible laminar y turbulento mediante comparación con datos experimentales de referencia

Abstract

The present experimental project is based on the analysis and comparison of reference data with the data calculated with the solver of the open field operation and the manipulation by the acronym in English OpenFOAM. The influence of the different interpolation methods and turbulence models was investigated, depending on whether the flows is laminar or turbulent flow respectively. For the comparison of the experimental data with those obtained with the software, different routines were programmed in C ++ automate the process of reading, obtaining errors and graphing the same for the cases studied. After analyzing the flow patterns it was determined that for laminar flow the linear and QUICK methods predict the flow with greater precision and stability than the UPWIND method. For turbulent flow, linear interpolation models were used for the three turbulence models studied, k-epsilon, realizable k-epsilon and RNG k-epsilon. It has been proven that the suitability of the turbulence model depends on the case to be studied, with considerable differences in the prediction of the boundary layer detachment.