Geodesic
Computational and experimental studies of a low-noise aircraft with a laminar wing and engines above the trailing edge of the wing
Matematičeskoe modelirovanie, Tome 34 (2022) no. 7, pp. 5-23.

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The main direction of development of modern commercial aviation is not only to improve the safety and fuel efficiency of aircraft, but also to reduce the impact on the environment, especially in terms of permissible community noise. One idea is to move the power plant to the upper surface of the wing to shield engine noise by the wing. Such a solution can lead to aggravation of the unfavorable aerodynamic interference between airframe elements, forcing the cruising speed to be reduced to the Mach number $\mathrm{M}=0.7$–$0.75$, instead of the most common $\mathrm{M}=0.78$–$0.8$. Solving the problem of unfavorable interference for low-noise layouts requires an improvement in the established design methodology. This paper presents studies on the methodology of designing the aerodynamic layout of a low-noise aircraft, which has two features: the engines are located above the trailing edge of the wing, and the wing itself has a small sweep $\chi_{1/4}\sim15^\circ$ with natural laminar flow (NLF), while maintaining the cruising Mach number $\mathrm{M}=0.78$. An experimental confirmation of the feasibility of this concept has been obtained.
Keywords: low-noise aerodynamic layout, laminar wing, direct method, inverse method, lift-to-drag ratio. 
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     title = {Computational and experimental studies of a low-noise aircraft with a laminar wing and engines above the trailing edge of the wing},
     journal = {Matemati\v{c}eskoe modelirovanie},
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A. L. Bolsunovsky; N. N. Bragin; N. P. Buzoverya; E. S. Perchenkov; I. L. Chernyshev; S. I. Skomorokhov. Computational and experimental studies of a low-noise aircraft with a laminar wing and engines above the trailing edge of the wing. Matematičeskoe modelirovanie, Tome 34 (2022) no. 7, pp. 5-23. http://geodesic.mathdoc.fr/item/MM_2022_34_7_a1/

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