Gabriel Felipe Oliveira Antão

Abstract

Computer simulation is increasingly crucial in the industry because it allows engineers to experiment with possible scenarios to identify the best ways to design their products even before they need to build prototypes, which reduces costs and development time. In this context, several companies have developed commercial solutions over the last few decades to meet this industry need. Many of thesesoftware developed for simulating fluid problems make use of simulation techniques based on the Finite Element Method (FEM) to model and numerically solve problems of interest. This work presents the development of the WaveFE simulator to deal with problems involving two-dimensional and transient fluid flow using FEM, more specifically the semi-implicit Characteristic-Based Split (CBS) technique, for solving the governing equations of the phenomenon. Although the use of MEF in these applications is common, there are very few examples of CBS implementation available in open source to serve as a base framework for new developments, in this sense WaveFE intends to be a base implementation for future developments so that you can easily try new models without having to rewrite the CBS base code common to all methods. In addition to the architecture of the simulator, its use is presented in classic simulation cases such as incompressible flow between plates, the square cavity case and the step case, which were used to validate and verify the results obtained in the simulator and showed excellent agreement with reference results. , which increases the level of evidence that the simulator can be used in the future for experiments with CBS-based models. vii Sumário

Advising

Advisor: Anjos, G. R.