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Information System Assessment and Proposal of ICT Modification
Sládek, Adam ; Moudrá, Libuše (referee) ; Novák, Lukáš (advisor)
The main idea of this bachelor thesis is to analyse information system of VZP, which contains all information about their clients. Access to this system is provided through company Elso Service s.r.o., which manages it for VZP. There is a teoretical and also practial part. The teoretical part describes and explains the main terms from information system theory. The practical part analyse the present quality of the system and suggests possible solutions for better funcionality of the system.
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Information System Assessment and Proposal of ICT Modification
Sládek, Adam ; Moudrá, Libuše (referee) ; Novák, Lukáš (advisor)
The main idea of this bachelor thesis is to analyse information system of VZP, which contains all information about their clients. Access to this system is provided through company Elso Service s.r.o., which manages it for VZP. There is a teoretical and also practial part. The teoretical part describes and explains the main terms from information system theory. The practical part analyse the present quality of the system and suggests possible solutions for better funcionality of the system.
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Modelling of flow over two transversal ribs in a channel with free surface
Sládek, A. ; Příhoda, Jaromír ; Stanislav, Jiří
Numerical simulation of turbulent flow over two transversal ribs on the bottom of a channel with free surface was carried out. The VOF (Volume-of-Fluid) method implemented in the commercial software FLUENT 6.3 was used for the solution of supercritical flow in a channel with free surface. The two-equation turbulence model according to Shih et al. was applied. The simulation was realised for ribs with the relative spacing t/b = 6; 10 and 20. Profiles of mean velocity and velocity fluctuation obtained by numerical simulation were compared with experimental data from LDA and PIV measurements. The behaviour of free surface over ribs was compared with experiments as well.
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Modelling of flow over one transversal rib in a channel with free surface
Sládek, Aleš ; Příhoda, Jaromír
Numerical simulation of flow over one transversal rib on the bottom of a channel with free surface was carried out. The VOF (Volume-of-Fluid) method implemented in the commercial software FLUENT 6.3 was used for the solution of supercritical flow in a channel with free surface. The two-equation turbulence model according to Shih et al. was applied. Profiles of mean velocity and velocity fluctuation obtained by numerical simulation were compared with experimental data from PIV measurements. Secondary flow and the length of separated region behind the rib were compared with experimental data as well.
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Optimizatiom of curved diffuser with inner cylindrical wall
Sládek, A. ; Hyhlík, T. ; Příhoda, Jaromír
The aim of the paper is optimization of curved diffusers with rectangular cross-section. The optimization is based on numerical solution of Navier-Stokes equations with standard k-eps turbulence model using FLUENT 6.0 software. The inner wall is cylindrical and the outer wall is described by the Bezier spline curve with two parameters. Energy losses coefficient is very dependent on the radius of the inner wall. The minimum of energy losses was achieved for the ratio Ri/d= 2,25.
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