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Computation of vehicle aerodynamic characteristics
Čavoj, Ondřej ; Porteš, Petr (referee) ; Vančura, Jan (advisor)
This Diploma thesis deals with CFD simulations of flow around vehicles subjected to a crosswind with MIRA Reference Car in three body shapes with a diffuser serving as a vehicle. It contains tuning of computational grid and chosen solver settings in Fluent, mostly for v2f turbulence model. The main output of this thesis is a simulation of all body shapes in several crosswind angles in steady state and one chosen body shape with one chosen crosswind angle in unsteady state. All results are validated against measurements taken with full scale models in MIRA windtunnel.
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Influence of rotating wheels on vehicle aerodynamic characteristics
Oslizlo, Aleš ; Svída, David (referee) ; Vančura, Jan (advisor)
The diploma thesis is focused on computational examination of influence of boundary condition settings in CFD software on the final aerodynamic characteristics of a vehicle. The flow analysis is carried out around a vehicle with and without the rotation of the wheels and along with the stationary and moving road. Furthermore, there is demonstrated the method of the CFD model composition and there is described the influence of rotating wheels on vehicle aerodynamic characteristics.
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Optimization of single slotted flap
Dvořák, Petr ; Šošovička, Róbert (referee) ; Popela, Robert (advisor)
The main objective of this diploma thesis is to optimize the high lift device on the wing of the Phoenix Air U-15 ultralight aircraft, so that it complies with the UL-2 regulation regarding the stalling speed – 65 KPH. This is fulfilled by optimization of the slotted flap position. Methods used include the Response Surface Method and the Computational Fluid Dynamics approach – namely Ansys Fluent v6 software package. Furthermore, the paper deals with take-off flap optimization and construction of the flap deflection mechanism.
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Computation of race car aerodynamics
Vančura, Jan ; Šálený, Vratislav (referee) ; Porteš, Petr (advisor)
The main subject of this diploma thesis is computation of race car aerodynamics. It describes composition method of CFD model with utilization of 3D scanner ATOS and CAD software Pro Engineer. During creating this diploma thesis were found influences of additional aerodynamics components of racing car on globally axle loads.
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Architectural Proposal of Building in Area of Air Port Brno Medlánky
Otto, Karel ; Matoušková, Petra (referee) ; Žalmanová, Petra (advisor)
Project presents the vision of the new Medlánky airport infrastructure, which is nowadays uncared, confused and without any possibility of expansion. The intention is create clear and well-arranged extensible structure. Safety of aircraft operations is the highest priority. New airport infrastructure should provide quality facilities for club members and pleasant surroundings for visitors. Every building has to declare its function on the first sight. Shapes and material solutions of primary buildings are inspired by aircrafts. Service buildings are low, flat and orthogonal. Simplicity is important, because aircrafts – machines have star part.
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Open-wheel aerodynamics
Babinec, Viktor ; Vančura, Jan (referee) ; Čavoj, Ondřej (advisor)
This bachelors thesis is focused on review of the aerodynamic charakteristics of the rotating wheels for formula cars. This paper describes the nature, origin and development of flow structures in the wheel area, affecting other parts of the vehicle. To create a holistic view of the aerodynamic charakteristics of the wheel, it is necesary to include impacts on changing wheel geometry while driving, which significantly changes the nature of the flow. Among the observed effects include deformation of the wheel, its camber, yaw and axle height.
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Car body design of Formula Student
Štěpánek, Jan ; Řezníček, Svatopluk (referee) ; Haltof, Vladimír (advisor)
The subject of this thesis is to design a body of a formula car, participating in international Formula Student competition. The work includes the designing proces of three concepts, one of which is selected as the final version. This variant is than finalized with technical, aerodynamic and manufacturing aspects in mind.
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