Name: UALAS MAGALHÃES AGUIAR
Type: MSc dissertation
Publication date: 23/12/2022
Advisor:
Name |
Role |
|---|---|
| JUAN SÉRGIO ROMERO SAENZ | Advisor * |
Examining board:
| Name |
Role |
|---|---|
| DANIEL DA CUNHA RIBEIRO | External Examiner * |
| EDILSON LUIZ DO NASCIMENTO | External Examiner * |
| JUAN SÉRGIO ROMERO SAENZ | Advisor * |
| RENATO DO NASCIMENTO SIQUEIRA | Internal Examiner * |
Summary: This work proposes the study and design of hydrodynamic components, such as diffusers, mixers and valves, through the proposal and application of a new Topological Optimization Method (MOT). The MOT is a computational method that allows to obtain an optimized design of a system, through the distribution of a limited amount of material in a given design domain. In this case, the MOT is applied to a solid porous domain, allowing to obtain the optimized topology (optimal shape) of a geometry WHERE its final optimized shape is controlled by a variable that has a unique value that varies from cell to cell of the mesh and are updated throughout the iterative process, referred to as the design variables. The quality of the geometric form is re-evaluated at each iterative cycle by a function (usually an integral), known as the objective function. The objective function value depends on the values of the design variables and the flow field variables, being the job of this function to direct the optimization process to its final optimal form. The methodology is applicable to cases WHERE the flow is single-phase and incompressible, these being typical cases of application of the Navier-Stokes equations. The MOT implementation is performed in the form of computational routines, integrating the Openfoam software that solves the Navier-Stokes equations, using finite volumes, and the optimization routine that is compiled in another software. As a way of attesting to the effectiveness of the optimization routine proposed here, the optimization method was applied to some geometries with results already consolidated in the area of topological optimization. Comparing the results obtained by this project with the results presented in the literature, the optimized geometries obtained showed a very close similarity with the literature. In general, the device optimization project, using the MOT together with the software OpenFoam, proved to be viable and meeting the proposed objectives.
