Numerical Resolution of Turbulent Flows
The main goal of the project was to develop a new independent code able to solve turbulent ows numerically. Once the code nished, it has been used to solve three canonic ows of which benchmark solutions are published, making it possible to check the validity and the code's accuracy. These probl...
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| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2011 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/350143 |
| Acceso en línea: | https://hdl.handle.net/2117/350143 |
| Access Level: | acceso abierto |
| Palabra clave: | Fluid mechanics Mecànica de fluids Àrees temàtiques de la UPC::Energies |
| Sumario: | The main goal of the project was to develop a new independent code able to solve turbulent ows numerically. Once the code nished, it has been used to solve three canonic ows of which benchmark solutions are published, making it possible to check the validity and the code's accuracy. These problems are the Lid Driven Cavity, the Differential Heated Cavity and nally, the Turbulent Channel Flow. A completely new C + + code have been developed and no external software has been used. Therefore it includes all the features needed to obtain a solution, from a mesh generator, to a set of equations solver. Despite the geometric simplicity of the selected canonic ows, both, the physics involved and the mathematical treatment of its governing equations are quite complex. In none of the presented cases an analytical solution exists. Therefore, a numerical method has been implemented in order to get a solution. In this project, the resolution has been focused on the nite volumes method, using a fully explicit second order time discretization for the velocity, an implicit treatment for the pressure, and a Fractional Step method to decouple pressure and velocity variables and enforce the incompressibility constraint. |
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