20.500.12556/RUL-108270 Preverjanje merilnega sistema za določanje hitrosti zraka v vetrovniku Verification of the air velocity measuring system in a wind tunnel Pri raziskavah na področju aerodinamike in za namen umerjanja merilnikov hitrosti zraka uporabljamo vetrovnike. Njegov namen je, da v merilni sekciji zagotavlja stabilen in homogen tok zraka. V tem delu smo preverili merilni sistem, ki ga vetrovnik uporablja za določanje hitrosti toka zraka v merilni sekciji. Preverili smo merilno in programsko opremo ter na koncu naredili primerjalno meritev hitrosti z drugim merilnikom. Ugotavljamo, da je kljub nekaterim pomanjkljivostim, merilni sistem ustrezen. Smo pa vseeno podali nekaj predlogov za njegovo izboljšavo. Use of wind tunnels is important in the aerodynamics and for calibration of air velocity sensors. Its purpose is to generate a stable and homogenous air velocity field. In this thesis we verified the measuring system of the wind tunnel, which is used to determine air velocity in the measuring section. We verified the measuring equipment and the software and made final comparison with another air velocity meter. Despite some shortcomings, the measuring system is found to be suitable. Nevertheless, we made some suggestions for its improvement. vetrovniki hitrost zraka gostota zraka Venturijeva cev preverjanje wind tunnels air velocity air density Venturi tube verification true false false [J. Letonje] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2019-06-23 07:45:04 2019-06-23 07:45:15 2023-11-29 13:27:48 0000-00-00 00:00:00 2019 0 Ljubljana 0 XXI, 48 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 533.6.071:531.7(043.2) 212413 16707867 3642.pdf 3642.pdf 1 B6D8435DFDDBAFD461518200966D4213 cb374928bcd86e1afae751ba8d9242aac307bbec9e7301c5c9c9ebcc614c2a2e 9bb2555c-a1b6-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=119218 Fakulteta za strojništvo 0 0 0