Aeroprofili i krila za nadzvučne i hiperzvučne brzine leta

undergraduate thesis

• Title (english): Airfoils and Wings for Supersonic and Hypersonic Flight Speeds
• Author: Tomislav Andrić
• Mentor: Andrija Vidović (mentor)
• Committee member: Sanja Steiner (predsjednik povjerenstva)
• Committee member: Matija Bračić (član povjerenstva)
• Committee member: Ružica Škurla Babić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Transport and Traffic Sciences; (Division of Transport); (Department of Air Transport); Zagreb
• Defense date and country: 2019-09-17, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Traffic and Transport Technology; Air Traffic

Abstract

Aeroprofil je poprečni presjek krila, aerodinamički je oblikovana površina koja ostvaruje uzgon potreban za let. Uzgon je aerodinamička sila koja nastaje kao rezultat razlike tlakova na gornjaci i donjaci krila. Krilo se dobije nizanjem aeroprofila jedan do drugog, to je glavna površina na zrakoplovu koja stvara uzgon. Uporabom vrlo tankih superkritičnih aeroprofila, postiže se bolji koeficijent uzgona pri manjim brzinama u odnosu na oštre tanke aeroprofile, te se poboljšavaju performanse pri nadzvučnim i hiperzvučnim brzinama, u odnosu na konvencionalne aeroprofile. Najpovoljnija krila za nadzvučne i hiperzvučne brzine su delta krila koja su karakteristična po tome što stvaraju mali valni otpor.

Abstract (english)

An airfoil is a cross-section of the wing, it is a streamline shaped surface which achieves lift required for flight. Lift is an aerodynamic force which results from different pressures on the upper and lower surface of the wing. The wing is acquired by stringing the airfoils side by side, it is the most important surface of the aircraft for creating lift. By using very thin supercritical airfoils, better lift coefficient is achieved at lower speeds, compared to sharp and thin airfoils, and also a better performance at supersonic and hypersonic speeds, compared to conventional airfoils. Most favourable wings for supersonic and hypersonic speeds are delta wings which are characteristic by the fact that they produce very little wave drag.

• Keywords: aeroprofil; krilo; nadzvučna brzina; hiperzvučna brzina; delta krilo; kut strijele krila
• Keywords (english): airfoil; wing; supersonic speed; hypersonic speed; delta wing; sweepback angle
• Language: croatian
• URN:NBN: urn:nbn:hr:119:088733
• Study programme: Title: Traffic and Transport; specializations in: Road Traffic and Transport, Railway Traffic and Transport, Water Traffic and Transport, Air Traffic and Transport, Postal Traffic, Information and Communication Traffic, Urban Traffic and Transport; Course: Air Traffic and Transport; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prometa (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prometa)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-02-07 15:06:12