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Modeling of magnetohydrodynamic phenomena
Mačák, Martin ; Maxa, Jiří (referee) ; Vyroubal, Petr (advisor)
Theoretical part of this thesis is dedicated to the theoretical basis of electric conduction phenomena in fluids and method of calculation of magnetohydrodynamic phenomena. In the experimental part, computational modules have been developed to complement and augment the use of commercial simulation programs for simulation in the field of magnetohydrodynamics. On practical examples of mass spectrometer simulation, Einzel lens, electron movement and electric circuit breaker, the functionality of the computational models and the correctness of the obtained results were documented. Created computational modules can be used to design and optimize products using magnetohydrodynamic phenomena.
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Precise drug targeting using electromagnetic fields
Matějka, Alexandr ; Vyroubal, Petr (referee) ; Mačák, Martin (advisor)
The present bachelor thesis deals with the study of electromagnetic fields used for precise drug targeting from the point of view of numerical simulations. This area is very interesting from different points of view. The use of numerical simulations is currently a very attractive, but not widely used solution. In this bachelor thesis, a numerical model is developed to model the phenomena under investigation. Furthermore, the effect of the proximity of the magnetic field source on the targeting efficiency of drug carriers was analyzed in this thesis. The use of simulations of the presented issue can help to streamline and accelerate the application of the stated methods in practical applications.
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Numerical simulations of dynamic processes in the solar corona
BELOV, Sofya
This master's thesis deals with 3D numerical simulations of turbulent flow past magnetic structures in the solar corona, focusing on the phenomenon of vortex shedding. This phenomenon is well known in hydrodynamic conditions. Still, it has not yet been satisfactorily investigated in magnetohydrodynamic (MHD) conditions, such as in the solar atmosphere, where its occurrence has been suggested by several studies and may explain some oscillatory phenomena. Numerical code Lare3d is used for the simulations.
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Proudění tekutiny v okolí překážky kruhového průřezu
BELOV, Sofya
This bachelor thesis deals with the issue of fluid flow around an obstacle of a circular cross-section, including the phenomenon called Kármán vortex street. Numerical code Lare2d is used for numerical simulations of fluid flow at various Reynolds numbers and extending the issue to magnetic field environment.
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Precise drug targeting using electromagnetic fields
Matějka, Alexandr ; Vyroubal, Petr (referee) ; Mačák, Martin (advisor)
The present bachelor thesis deals with the study of electromagnetic fields used for precise drug targeting from the point of view of numerical simulations. This area is very interesting from different points of view. The use of numerical simulations is currently a very attractive, but not widely used solution. In this bachelor thesis, a numerical model is developed to model the phenomena under investigation. Furthermore, the effect of the proximity of the magnetic field source on the targeting efficiency of drug carriers was analyzed in this thesis. The use of simulations of the presented issue can help to streamline and accelerate the application of the stated methods in practical applications.
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Oscilační procesy v magnetických strukturách sluneční koróny
EFFENBERK, Kryštof
This diploma thesis is focused on waves and oscillations in the solar corona, which takes place in a large number of phenomena that occurs here. In recent years these waves have been observed in Earth observation same like as cosmic observation.The task of this thesis is to familiarize with the problems of waves and oscillations in solar corona and subsequent interpretation into numerical simulations that are performed by FLASH code. The aim of the work will be to modify numerical simulations and thus to achieve more realistic of the observed phenomena.
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Modeling of magnetohydrodynamic phenomena
Mačák, Martin ; Maxa, Jiří (referee) ; Vyroubal, Petr (advisor)
Theoretical part of this thesis is dedicated to the theoretical basis of electric conduction phenomena in fluids and method of calculation of magnetohydrodynamic phenomena. In the experimental part, computational modules have been developed to complement and augment the use of commercial simulation programs for simulation in the field of magnetohydrodynamics. On practical examples of mass spectrometer simulation, Einzel lens, electron movement and electric circuit breaker, the functionality of the computational models and the correctness of the obtained results were documented. Created computational modules can be used to design and optimize products using magnetohydrodynamic phenomena.
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Advanced numerical simulations in space plasma physics using Finite Element Method
Kotek, Jan ; Bárta, Miroslav (advisor) ; Varady, Michal (referee)
en.txt After an introduction into current sheet physics, with emphasis to solar physics we showed some formulations of finite element method. We implemented and evaluated new discontinuous finite element with Taylor basis and introduced deal.II library with an example of burgers equation. While the program is dimension independent, we compared our solution with a one-dimensional analytical solution. Finally, using previously derived LSFEM formulation, we solved simple current sheet problem using deal.II. Stránka 1
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