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Využití reverzního inženýrství pro výpočty aerodynamiky automobilu / The utilization of reverse engineering in computation of vehicle aerodynamicsRozsíval, Jan January 2008 (has links)
The vehicle body was measured by using ATOS 3D scanner. Measured data from the ATOS 3D scanner were applied to make a 3D model of vehicle body and to make a 3D model of whole vehicle by using computer program Pro/ENGINEER. The model of vehicle was made with a view for future use of CAD model. Surface of the vehicle model was used for computation of vehicle aerodynamics – aerodynamic static pressure distribution by using CFD software Star-CCM+.
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Optimalizace chlazení oleje letounu VUT 100 / VUT100 aircraft engine oil cooling installation optimizationMackovík, Matěj January 2011 (has links)
The mein objective of this diploma thesis is to optimize the oil cooler of the VUT 100 aircraft, so that it complies with the CS-23 regulation and requirements of the engine producer. This is fulfilled by using of suitable oil cooler and by optimization of the air duct. Computational Fluid Dynamics approach – namely Ansys Fluent software package is used for it.
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Výpočet aerodynamických charakteristik vozidla s vybočením / Computation of vehicle aerodynamic characteristicsČavoj, Ondřej January 2012 (has links)
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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Experimentální měření aerodynamických silových účinků / Experimental measurements of aerodynamic forcesJob, Štefan January 2012 (has links)
This thesis deals with the effect of the aerodynamic forces on a vehicle. It contains the description of the test run of the vehicle, the proposal on how to process the measurements, the processing of the measurements themselves, and the final assessment of the results as to their accuracy and the possibility of repeating the experiment. Furthermore, this thesis contains the comparison of the effect of the individual aerodynamic features on the race car.
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Analýza vlivu polohy karoserie závodního vozu na aerodynamické charakteristiky / Analysis of the influence of body position on the car's aerodynamic characteristicsDaniel, Petr January 2012 (has links)
Master’s thesis deals with the aerodynamics of racing vehicle for various settings of clearance and tilt of body. First is described the theory of aerodynamics and flow. It was necessary to build the CAD model of racing car for analysis. Assembly of this model is the next chapter of the master’s thesis. This is followed by CFD analysis, where is displayed a simplified model of the vehicle. This part describes the overall process and setting in the CFD program. In conclusion, the results are summarized for each setting.
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Měření aerodynamických charakteristik vozidla na základě jízdních testů / Measurement of vehicle aerodynamic characteristics based on driving testsHorký, Martin January 2014 (has links)
This thesis deals with appraising aerodynamic characteristics of vehicle based on road testing, specifically on coastdown tests and straight-line tests.
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Zařízení pro měření proudění vzduchu pod vozidlem / Device for measurement the air flow under the vehicleŠilar, Josef January 2015 (has links)
The target of this thesis is construction design of a device for measuring flow bellow a vehicle. To deep dive into the problem first there is theory of driving resistance, flow and aerodynamics followed by the practical part. Also it solves completion of CFD model to detect flow field bellow vehicle while using this device.
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Výpočet zatížení vztlakových klapek letounu L410NG a porovnání s letovým měřením / Computational analysis of high lift devices loads for L410 aircraft and its comparison to experimental dataFlorián, Martin January 2015 (has links)
The computational model design of a twin-engine, turbo-propeller, commuter aircraft and its two landing configuration analysis is the subject of the Master‘s thesis. The solution contents calibration part, creation of a computational mesh, global aerodynamics characteristics definition and detailed high lift devices load of L410 NG aircraft. The acquired results are compared to wind tunnel data. The comparison of accuracy and advantages of CFD is involved as well.
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Aerodynamická optimalizace monopostu formule SAE / Formula SAE aerodynamic optimizationFryšták, Lukáš January 2016 (has links)
Tato práce se zabývá měřením aerodynamických charakteristik modelu závodního vozu Formula SAE v aerodynamickém tunelu, v měřítku 1:4. V první části je představen projekt Formula SAE a popsána role aerodynamiky v rámci této soutěže. Následuje přehled teoretického pozadí, které je relevantní k provedenému experimentu. Ve druhé části práce je popsán samotný experiment a prezentovány jeho výsledky. Součástí je návrh, výroba a kalibrace šestikomponentní tenzometrické váhy pro měření aerodynamického zatížení. Testy v aerodynamickém tunelu byly provedeny ve čtyřech konfiguracích, aby bylo možné určit vliv přítlačných křídel a podlahy s difuzorem na výsledné aerodynamické charakteristiky vozu.
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Aerodynamický návrh posledního stupně parní turbíny / Aerodynamic design of the last stage of a steam turbineJeřábek, Lukáš January 2018 (has links)
Diploma thesis deals with calculations of a steam turbine with two uncontrolled extraction points according to the assignment, aerodynamics of the last two stages and operating range with respect to ventilation, range of performance and straining of the last blading under the large condensation pressure deviations. For the first three stages the calculation of prismatic action blades is executed. The fourth and the fifth stages are designed with inconstant reaction over the blades length and their calculation is executed with constant circulation method. For these stages, aerofoil design with respect to their aerodynamic qualities is carried out using Bézier curves. During the whole time verification process of aerofoils qualities, their energy losses and isoentropic Mach number distribution is executed in MISES program in cooperation with Doosan Škoda Power.
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