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Zasnova in izdelava zaprtotočnega vetrovnika z odprto testno komoro
ID Menegatti, Blaž (Author), ID Kosel, Tadej (Mentor) More about this mentor... This link opens in a new window

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Abstract
Pri testiranju aeroprofilov, propelerjev in letal z vertikalnim vzletom in pristankom dotekajoči zrak priteka na testirane objekte pod velikimi vpadnimi koti, kar privede do velikega uklona zračnega toka. Zato smo za potrebe VTOL (vertikalen vzlet in pristanek) testiranj zasnovali zaprtotočni vetrovnik z odprto testno komoro, kjer vpliv velikega uklona toka ne pride do tolikšnega izraza kot v zaprti testni komori. Celoten vetrovnik smo zasnovali v omejenem prostoru, pri čemer smo določili največji možen premer kanalskega sistema ventilatorja. Kanalski sistem smo razdelili na dva dela in ju vpeli v premični jekleni konstrukciji. Vetrovnik smo opremili z merilno opremo za merjenje temperature, vlage in statičnega oziroma totalnega tlaka. Za zasnovan vetrovnik smo preračunali parametre za doseganje podobnosti med modelom in prototipom. Izrisali smo shemo vetrovnika, delavniške in sestavne risbe kanalskega sistema ter vetrovnika vpetega v jekleno konstrukcijo.

Language:Slovenian
Keywords:zaprtotočni vetrovniki, odprte testne komore, nizke hitrosti, nizka Reynoldsova števila, zasnova kanalskega sistema, jeklene konstrukcije, testiranje aeroprofilov, testiranje propelerjev, V/STOL testiranje
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Place of publishing:Ljubljana
Publisher:[B. Menegatti]
Year:2020
Number of pages:XXII, 55 str.
PID:20.500.12556/RUL-119109 This link opens in a new window
UDC:533.6.07:658.512.2(043.2)
COBISS.SI-ID:29903619 This link opens in a new window
Publication date in RUL:03.09.2020
Views:862
Downloads:411
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Secondary language

Language:English
Title:Design and manufacture of closed return wind tunnel with open test section
Abstract:
When testing airfoils, propellers and aircraft with vertical take-off (VTOL) and landing systems, the incoming air flows at the tested objects at large angles of attacks, which leads to a large deflection of the airflow. Therefore, for the needs of VTOL testing, we designed a closed return wind tunnel with an open test section, where the influence of a large downwash flow is not as big as in a closed test section. The closed return wind tunnel was designed in a confined space, determining the maximum possible diameter of the air duct system. The air duct system was divided into two parts and installed in a movable steel structure. Wind tunnel was equipped with measuring equipment for measuring temperature, humidity, static and total pressure. For the designed wind tunnel, we calculated the parameters to achieve similarity between the model and the prototype. We drew a scheme of a wind tunnel, workshop and components drawings of the air duct system and a wind tunnel mounted in a steel structure.

Keywords:closed return wind tunnel, open test section, low-speed, low Reynolds numbers, design of air duct system, steel construction, aeroprofile testing, propeller testing, V/STOL testing

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