Análise numérica do escoamento de Taylor-Couette

Abstract

The flow of Taylor-Couette has been the focus of several studies. The objective of this work is to analyze this flow using OpenFoam software. Analyzes were done using the k − epsilon and SpalartAllmaras turbulence models. First a geometry was created to be studied, this geometry is the flow of Taylor-Couette. Then, each mesh was adapted to its turbulence model. The boundary conditions were chosen to simulate the flow so as to demonstrate all the flow phases, having a laminar flow without the Taylor vortices, a laminar flow with the vortices and a turbulent flow with the presence of vortices. The results achieved were as expected, but the turbulence models explored showed different results. The k − epsilon method proved to be a less sensitive turbulence model, its results were out of step with what is prescribed in the literature, as it required a higher velocity to reach critical Taylor. Already the results of the SpalartAllmaras were convincing, within the model and speeds placed, having the expected numerical result for all the imposed speeds.