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Journal of KONES

Tytuł artykułu

Ground effect influence on the aerodynamic characteristics of ultralight high-wing aircraft : wind tunnel tests

Autorzy Placek, R.  Ruchała, P.  Stryczniewicz, W. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN The ground proximity may significantly improve the performance of the aircraft, but in some conditions, it affects its stability. The gain of lift which and reduction of drag during low altitude flight is known as the wing in ground effect (WIG effect). It may concern aircrafts or WIG-crafts (ground effect vehicles). In the article experimental results of the wind tunnel test of an aircraft in ground effect has been presented. The main aim of the test was to investigate the ground effect influence on aerodynamic characteristic of the of the ultralight high-wing aircraft model during early take off, taxiing or final landing stage. Investigation was carried out in the 1.5 m diameter low speed T-1 wind tunnel in the Institute of Aviation in Warsaw. The velocity was 32 m/s and Reynolds number related to the aerodynamic chord was equal about 0.37·106. Tests were performed for chosen angles of attack in range 0-10⁰. During investigation, the strain gauge balance measurements and Particle Image Velocimetry (PIV) flow visualization technique were applied. Tested model position was relatively close to the ground. It was found, that the ground proximity has significant influence on the pitching moment. The normal force was increased and the axial force is decreased due to the WIG effect, which is compatible with the theory. It has significant meaning for control aircraft issue and safety.
Słowa kluczowe
EN ground effect   aerodynamic characteristics   high-wing ultralight aircraft   wind tunnel research  
Wydawca Institute of Aviation
Czasopismo Journal of KONES
Rocznik 2017
Tom Vol. 24, No. 2
Strony 183--190
Opis fizyczny Bibliogr. 22 poz., rys.
autor Placek, R.
  • Institute of Aviation, Department of Aerodynamics, Krakowska Av. 110/114, 02-256 Warszawa, Poland tel.: +48 22 846 00 11 ext. 360, 312,
autor Ruchała, P.
  • Institute of Aviation, Department of Aerodynamics, Krakowska Av. 110/114, 02-256 Warszawa, Poland tel.: +48 22 846 00 11 ext. 360, 312,
autor Stryczniewicz, W.
  • Institute of Aviation, Department of Aerodynamics, Krakowska Av. 110/114, 02-256 Warszawa, Poland tel.: +48 22 846 00 11 ext. 360, 312,
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PL Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-1fe03244-09f8-4805-9e1a-1c6bb936e5da
DOI 10.5604/01.3001.0010.2931