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Parametric Generator of Heat Exchanger Tube Bundle Mesh for OpenFOAM
Petrů, Martin ; Juřena, Tomáš (referee) ; Turek, Vojtěch (advisor)
This thesis deals with the basics of computational fluid dynamics (CFD), the reasons for its use, and the related necessity to create computational meshes. The next part of the thesis focuses on assessing the quality of computational meshes and, briefly, on computational methods of CFD. The available mesh generators are also compared, and an overview of meshing capabilities is provided. The following is basic information about the OpenFOAM software and its capabilities, in particular the creation of meshes using the blockMesh application. The following part of the thesis is focused on the description of the developed application and its functions for generating a high-quality computing mesh of a tube bundle heat exchanger for the OpenFOAM software. In conclusion, a steady flow simulation verifies the correctness of the created mesh and its sufficient quality.
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Parametric Generator of Heat Exchanger Tube Bundle Mesh for OpenFOAM
Petrů, Martin ; Juřena, Tomáš (referee) ; Turek, Vojtěch (advisor)
This thesis deals with the basics of computational fluid dynamics (CFD), the reasons for its use, and the related necessity to create computational meshes. The next part of the thesis focuses on assessing the quality of computational meshes and, briefly, on computational methods of CFD. The available mesh generators are also compared, and an overview of meshing capabilities is provided. The following is basic information about the OpenFOAM software and its capabilities, in particular the creation of meshes using the blockMesh application. The following part of the thesis is focused on the description of the developed application and its functions for generating a high-quality computing mesh of a tube bundle heat exchanger for the OpenFOAM software. In conclusion, a steady flow simulation verifies the correctness of the created mesh and its sufficient quality.
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Methods for generating computational grids suitable for finite element method
Langer, Lukáš ; Hron, Jaroslav (advisor) ; Šír, Zbyněk (referee)
This paper is focused on the problematic of the meshes and tries to introduce the basic kinds of these meshes with their advantages and disadvantages. The algorithm of choosen methods of generations is further described. Moreover it introduces in detail the method of generation quadrilateral mesh via the dual graph method presented in work Nowottny, 1999. There is described how to make the start dual graph, it's factorization and the final redualization into quadrilateral mesh. The own implementation of this method in the python programming language is included.
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Methods for generating computational grids suitable for finite element method
Langer, Lukáš ; Hron, Jaroslav (advisor) ; Šír, Zbyněk (referee)
This paper is focused on the problematic of the meshes and tries to introduce the basic kinds of these meshes with their advantages and disadvantages. The algorithm of choosen methods of generations is further described. Moreover it introduces in detail the method of generation quadrilateral mesh via the dual graph method presented in work Nowottny, 1999. There is described how to make the start dual graph, it's factorization and the final redualization into quadrilateral mesh. The own implementation of this method in the python programming language is included.
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Computer modelling in programming language COMSOL Multiphysics
MÁCHA, Václav
The thesis deals with a computer modelling by means of the commercial software COMSOL Multiphysics. The thesis is structured into three topical sections. The first part is dedicated to the programme characteristics and its development. In the second part the brief characteristics of working with the programme COMSOL Multiphysics is presented which should make the user´s first steps in working with software easier. The last part of thesis shows the specific demonstration of the created multiple physics task taken from the field of plasma physics. This task is solved by means of continuous simulation of a computer modelling based on the drift-diffusion approximation of low temperature plasma. The proposal of the paper for the proceedings of the conference ,,Technical Computing Prague 2012" is also a part of this thesis.
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