20.500.12556/DKUM-68027 Numerična analiza aerodinamike športnega vozila Numerical analysis of sport vehicle aerodynamics Tema magistrskega dela je izboljšava aerodinamičnih lastnosti športnega vozila TS-600. Pri tem smo se osredotočili na optimizacijo oblike difuzorja. Simulacijo trenutne oblike vozila smo naredili pri hitrosti 100 km/h in 180 km/h. Na podlagi dobljenih rezultatov smo izračunali koeficient dviga in upora. Z variiranjem naklonskega kota difuzorja, ki ga ta oklepa s tlemi, smo podali trend gibanja obeh koeficientov. Ugotovili smo, da je ta neodvisen od hitrosti vozila. Z večanjem naklonskega kota difuzorja se koeficient upora povečuje, hkrati pa se koeficient dviga zmanjšuje. Ob želji po čim manjšem koeficientu upora, ter čim bolj negativnem koeficientu dviga, je optimalen naklonski kot difuzorja 20°. The theme of this master's thesis is improvement of the aerodynamics of TS-600 sports car. It is focused on optimization of the diffuser shape. We made a simulation of its current shape at speed of 100 km/h and 180 km/h. Based on obtained forces, we calculated the lift and drag coefficient. With the variation of the diffusors angle of inclination, we obtained the trend of changing of both coefficients. We concluded, that the trend is independent of the vehicles speed. By increasing the inclination angle, the drag coefficient increases and at the same time the lift coefficient decreases. If we want to obtain the lowest drag coefficient, and the most negative lift coefficient, is the optimum diffusers inclination angle 20°. aerodinamika numerična analiza računalniška dinamika tekočin (RDT) simulacija aerodynamic numerical analyses computational fluid dynamics (CFD) simulations true true false [A. Horvat] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2017-09-06 13:39:41 2017-09-29 11:32:43 2022-08-01 14:46:03 2019-07-11 16:39:17 2017 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 629.3.015.3:629.371.23(043.2) 21205270 URN:SI:UM:DK:SL6LQUZM MAG_Horvat_Ales_2017.pdf MAG_Horvat_Ales_2017.pdf 1 620D4ABAB8FB2B45C917B12520B17AF1 4acf6431ab33ea9a049bfba53100a23f3a10bbc5f285ee8bcd2d3a119a139f0c 635d017f-7c0f-11eb-bb7a-00155d0001ca 20.500.12556/dkum/dae0c991-ed7f-470a-bbd0-d1e2d2516e69 https://dk.um.si/Dokument.php?lang=slv&id=119174 Fakulteta za strojništvo 0 0 0