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undergraduate thesis
Aerodinamičke karakteristike tankog deformabilnog aeroprofila u oscilatornom gibanju
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2018. urn:nbn:hr:235:662014
Vojković, Tea
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

Institutional repository: Repository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb

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Vojković, T. (2018). Aerodinamičke karakteristike tankog deformabilnog aeroprofila u oscilatornom gibanju (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:662014

Vojković, Tea. "Aerodinamičke karakteristike tankog deformabilnog aeroprofila u oscilatornom gibanju." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2018. https://urn.nsk.hr/urn:nbn:hr:235:662014

Vojković, Tea. "Aerodinamičke karakteristike tankog deformabilnog aeroprofila u oscilatornom gibanju." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2018. https://urn.nsk.hr/urn:nbn:hr:235:662014

Vojković, T. (2018). 'Aerodinamičke karakteristike tankog deformabilnog aeroprofila u oscilatornom gibanju', Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 20 December 2024, https://urn.nsk.hr/urn:nbn:hr:235:662014

Vojković T. Aerodinamičke karakteristike tankog deformabilnog aeroprofila u oscilatornom gibanju [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2018 [cited 2024 December 20] Available at: https://urn.nsk.hr/urn:nbn:hr:235:662014

T. Vojković, "Aerodinamičke karakteristike tankog deformabilnog aeroprofila u oscilatornom gibanju", Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:235:662014

Metadata
TitleAerodinamičke karakteristike tankog deformabilnog aeroprofila u oscilatornom gibanju
Title (english)Oscillating thin deformable airfoil aerodynamic characteristics
AuthorTea Vojković
MentorDubravko Matijašević (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2018-07-02, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Aviation, Rocket and Space Technology
Abstract
U radu se promatraju nestacionarne aerodinamičke pojave pri opstrujavanju tankog deformabilnog aeroprofila u potencijalnom strujanju. Pojedini modovi deformabilnog aeroprofila opisani su Čebiševljevim polinomima prve vrste. Prva dva moda predstavljaju kruta gibanja poniranja i propinjanja, dok viši modovi predstavljaju elastične deformacije aeroprofila. Pri računanju aerodinamičkih karakteristika, prati se Theodorsenov pristup koji je izvorno upotrebljen u širem okruženju za računanje aeroelastičnih svojstava krutog aeroprofila sa zakrilcem. U duhu Theodorsenove metode, za dobivanje ravne ploče koja služi kao referentni aeroprofil, korišteno je preslikavanje Žukovskog. Necirkulacijski tok opisan je plahtom izvora i ponora distribuiranih po stijenki cilindra čije su snage određene uvjetom nepropusnosti. Kuttin uvjet je zadovoljen kada se tome doda cirkulacijski tok, izračunat pomoću vrtložne plahte na aeroprofilu i njegovom tragu, bez narušavanja rubnog uvjeta. Izrazi za aerodinamički uzgon i moment propinjanja dani su u frekvencijskoj domeni.
Abstract (english)
In this thesis unsteady aerodynamic loads on thin deformable airfoil in potential flow are considered. The deformation of the airfoil is described by the Chebychev polynomials of the first kind. First two polynomials represent rigid body motion, pitching and plunging, while higher order polynomials represent elastic deformation of the airfoil. Method proposed by Theodorsen, originaly used in broader context of uttering airfoil with flap, is applied for aerodynamic load calculation. The Joukowski conformal mapping was used to transform the flow about a circle into a flow about a flat plate, which serves as reference airfoil. Noncirculatory flow consists of source sheet on the upper surface of circle and sink sheet on the lower surface. The strenght of the sheet is derived from the boundary condition. To satisfy Kutta condition, circulatory flow, which is derived by using a vortex sheet on the airfoil and in the wake, is superimposed.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:662014
Study programmeTitle: Aeronautical Studies
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka zrakoplovnog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka zrakoplovnog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2019-05-28 09:44:47