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Meshfree methods for computational aeroacoustics
 Bajko, Jaroslav ; Hlavička, Rudolf (oponent) ; Čermák, Libor (vedoucí práce)
Meshfree methods represent an alternative to the standard mesh-based numerical discretization techniques. Considerable effort has been spent on the verification of the meshless methods capabilities to solve problems from different engineering branches in the past decades. The aim of this master's thesis is an application of a suitable meshfree method in the computational aeroacoustics. Main attention will be focused on the sound propagation problems, which can be modeled using the linearized Euler equations. Necessary theory of the hyperbolic systems will be mentioned with respect to the nature of governing equations. Meshfree Finite point method (FPM) has been chosen due to its achievements in the computational fluid dynamics. The derivation of this meshfree method is presented as well as an accuracy improvements which are necessary for the sound propagation problems. Capabilities of the derived meshfree method will be verified on several benchmark problems using a software which was specially developed for this purpose.
Úplný záznam
Meshfree methods for computational aeroacoustics
 Bajko, Jaroslav ; Hlavička, Rudolf (oponent) ; Čermák, Libor (vedoucí práce)
Meshfree methods represent an alternative to the standard mesh-based numerical discretization techniques. Considerable effort has been spent on the verification of the meshless methods capabilities to solve problems from different engineering branches in the past decades. The aim of this master's thesis is an application of a suitable meshfree method in the computational aeroacoustics. Main attention will be focused on the sound propagation problems, which can be modeled using the linearized Euler equations. Necessary theory of the hyperbolic systems will be mentioned with respect to the nature of governing equations. Meshfree Finite point method (FPM) has been chosen due to its achievements in the computational fluid dynamics. The derivation of this meshfree method is presented as well as an accuracy improvements which are necessary for the sound propagation problems. Capabilities of the derived meshfree method will be verified on several benchmark problems using a software which was specially developed for this purpose.
Úplný záznam

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