Metoda vrtložne rešetke za noseću površinu jednostavne geometrije

Mačak, Jelena (2016) Metoda vrtložne rešetke za noseću površinu jednostavne geometrije. = Vortex lattice method for the lifting surface with simple geometry. Undergraduate thesis , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, UNSPECIFIED. Mentor: Vrdoljak, Milan.

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Macak_2016_zavrsni_preddiplomski.pdf - Published Version Jezik dokumenta:Croatian

Abstract (Croatian)

Cilj ovog završnog rada je određivanje i analiza aerodinamičkih karakteristika noseće površine, primjenom metode vrtložne rešetke. Razvijen je model koji se temelji na distribuciji singularnih vrtložnih elemenata po srednjoj površini zakrivljenosti noseće površine. Na osnovu izloženog modela napisana je računalna implementacija u Matlabu. Program je validiran usporedbom s eksperimentalnim podacima i drugim dostupnim metodama. Testirani su različiti pristupi modeliranja vrtložnog traga te je izvršena analiza njihovog utjecaja na točnost rješenja. Program je primjenjen na analizu koeficijenta uzgona noseće površine jednostavne geometrije.

Abstract

Main concern of this thesis was to determine and analyze aerodynamic properties of a lifting surface, using vortex lattice method. A model based on singularity distribution over the mean camber surface was developed. The model was implemented in the form of a Matlab code. It was validated by the means of comparison with experimental data and other available methods. Different wake shape geometries were applied in order to test their influence on the overall accuracy of the solution. Finally, the model was used in an analysis of a lifting surface with simple geometry.

Item Type: Thesis (Undergraduate thesis) Metoda vrtložne rešetke; noseća površina; aerodinamički koeficijent uzgona; aerodinamički koeficijent induciranog otpora Vortex lattice method; lifting surface; lift coefficient; induced drag coefficient TECHNICAL SCIENCE > Aviation, rocket and space technology 1300 Department of Aeronautical Engineering > 1320 Chair of Aircraft Dynamics 26 Feb 2016 11:45 12 Sep 2019 15:44 http://repozitorij.fsb.hr/id/eprint/5141