Numerical investigation of endplates influence on the wing in ground effect lift force

• Autorzy: Rojewski Adam , Bartoszewicz Jarosław

Identyfikatory

DOI

10.2478/kones-2019-0109

• Języki publikacji: EN

Abstrakty

EN

The article presents a comparison of the wing in ground effect magnitude of conceptual WIG craft model main characteristics for a wing with and without endplates which are also known as winglets in regular aircraft. In article, the author describes WIG effect with and WIG craft, which operates on low altitude, smaller than the length of wing chord, mostly above the water reservoir. WIG effect phenomenon is simple. The first aircraft needs to fly at adequate altitude, with a smaller distance between lower airfoil surface and ground static pressure rises, leading to rising of lift force. The main advantage of the wing in ground effect craft on regular aircraft is a much higher lift to drag ratio, also this phenomenon provides to drop in specific fuel consumption of aircraft and allows flying with heavier cargo due to higher lift force. Characteristics present in the article were designated from simulations, which were conducted in Ansys Fluent software. Results obtained for a wing with endplate in numerical analysis shows the superiority of this approach. Endplates provide to increase WIG effect by a decrease in induced drag through the move out vertices from the wing tips, which are made by differential pressure above and under the wing. As winglets in regular aircraft, endplates provide to save fuel. WIG craft does not need airports so it could be a cheap alternative for modern aircraft.

Słowa kluczowe

EN

endplates; ekranoplan; numerical analysis; wing in ground effect; airfoil

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2019
• Tom: Vol. 26, No. 4
• Strony: 205--210
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Rojewski Adam

• Poznan University of Technology, Chair of Thermal Engineering Piotrowo 30, 61-138 Poznan, Poland tel.: [phone]

autor

Bartoszewicz Jarosław

• Poznan University of Technology, Chair of Thermal Engineering Piotrowo 30, 61-138 Poznan, Poland tel.: [phone]

Bibliografia

• [1] DataBank, The World Bank, data.worldbank.org/indicator/IS.AIR.PSGR, access: 5.05.2019.
• [2] Rojewski, A., Bartoszewicz, J., Airfoil selection for wing in ground effect craft, Journal of KONES Powertrain and Transport, Vol. 24, No. 4, pp. 265-269, Warsaw 2017.
• [3] Rojewski, A., Ekranoplan – wstęp do projektu płatowca, Politechnika Poznańska, Poznan 2016.
• [4] Rojewski, A., Bartoszewicz, J., Usage of wing in ground effect to maintain lift force with reduced fuel consumption of aircraft, Combustion Engines, Nr 169 (2), 2017.
• [5] Rozhdestvensky, K. V., Aerodynamics of a Lifting System in Extreme Ground Effect, 1st ed., Springer-Verlag, pp. 63-67, 2000.
• [6] Yun, L., Bliault, A., Doo, J., WIG Craft and Ekranoplan, Springer Science, New York 2010.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).