Central Aerohydrodynamic Institute
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TsAGI Takes Part in Workshop on Aircraft Aerodynamics, Flight Dynamics

25 March 2024

Long-haul oval-fuselage aircraft design

A prerequisite for technological sovereignty is to determine core areas of research-and-technology development. Conferences and seminars organized at different levels are the traditional platforms to discuss future scientific prospects, new ideas, and to exchange the experience between top Russian scientists.

The 22nd Russian National Workshop on Aircraft Aerodynamics and Flight Dynamics was such an event; TsAGI (a part of NRC “Zhukovsky Institute”) took part in it. It was organized by SibNIA named after S. A. Chaplygin in mid-March near Novosibirsk.

TsAGI presented four reports showing the designs of the advanced aircraft of the future. Evgeny Pigusov, Deputy Head for Complex Technology Integration at TsAGI, spoke on the features of streamline of double-fuselage passenger aircraft (co-authors: A. Krutov, V. Chernousov, A. Volkow and V. Zamaraev). The fuel tanks are located in the right round fuselage while the passengers and cargo are placed in the left oval fuselage. Distinguishingly, the aircraft was designed purposefully asymmetric, which is linked with ensuring flight trimming. Expectedly, the aircraft will have three high‑bypass‑ratio engines. A number of computational studies prove the advantages of such design: high aerodynamic quality, passenger capacity, etc. The second report on this topic considered the study of features of streamline of oval-fuselage tail (A. Krutov, E. Pigusov, etc.).

Nikolai Bragin, Head of Sector at TsAGI Department for Aerodynamics, focused on studies of the flow field near horizontal tail at the landing of long-haul aircraft model with a shield (co-authors: G. Biryukov, A. Zabrodin and E. Zavarzina). The tests determined best deflection angles of spoilers and brake flaps reducing the intensity of aircraft wing wake vortex.

Sergei Kuzin, Junior Researcher at TsAGI, presented results of studying load-bearing properties of a wing with impeller propulsors (co-authors: A. Volkow, M. Dolotin, A. Krutov and E. Pigusov). It will allow the distributed propulsion to boost takeoff-and-landing lift, which has been proved by calculations and low-speed wind tunnel tests.

The Workshop also gathered scientists from SibNIA named after S. A. Chaplygin, Novosibirsk University, KIAM, UWCA, Kronstadt Company, and CIAM. Over 30 reports were presented in total.

The Workshop on Aircraft Aerodynamics and Flight Dynamics has been organized by SibNIA since 2002. It solves three main tasks: summing up last year’s results of SibNIA R&D Department for Aircraft Aerodynamics and Flight Dynamics; giving the basic skills in researching, preparing reports and reporting at research forums to the future scientists; and discussing advanced areas in aviation.

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