TsAGI (Zhukovsky Central AeroHydrodynamic Institute) continues to work on the comprehensive scientific and technical project (CSTP) "Integral," related to the appearance of future Russian civil aviation aircraft.
One of the promising elements recently underwent successful tests — an electric distributed propulsion system with impeller propulsion units on a promising regional aircraft with energy flow control. It will help the aircraft expand its basing conditions and provide it with a relatively high cruising speed.
Experiments have demonstrated a more than twofold increase in the wing's lift characteristics in takeoff and landing modes. This result was obtained primarily due to the implementation of the supercirculation effect: the operation of the impellers "reconfigures" the flow around the wing. Other factors also played a favorable role: the elimination of boundary layer separation from the wing surface and the deflection of the thrust vector.
TsAGI conducted studies in a low-speed wind tunnel over a wide range of angles of attack, which confirmed the expected characteristics in computational studies. The scientists also evaluated the effectiveness of integrating the power plant with the wing in takeoff and landing modes.
TsAGI notes that the results of these tests will allow the application of the developed approaches to assess the aerodynamic characteristics of a wing with an impeller distributed propulsion system when designing a promising aircraft with energy flow control.
Earlier in 2024, TsAGI design engineers reported that they created a new type of wing for aircraft with a movable skin. It can be useful for both air aviation and underwater gliders.
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