Question: What is the Joukowsky transform designed by  Father of Russian Aviation Nikolai Zhukovsky?

full_context: Document 1: Zhukovsky (film): Zhukovsky (Russian: Жуковский ) is a 1950 Soviet biopic directed by Vsevolod Pudovkin and Dmitri Vasilyev, based on the life of Russian scientist Nikolai Zhukovsky (1847–1921), founding father of modern aero- and hydrodynamics. In 1950 Pudovkin received the Best Director award at the 5th Karlovy Vary International Film Festival for this film. In 1951 Pudovkin, Shebalin, Golovnya, and Belokurov received the Stalin Prize.
Document 2: Droop-nose: The droop-nose configuration is a distinctive feature of some supersonic aircraft, most notably both Concorde and the Tupolev Tu-144. When these aircraft were in service, the pilot would lower the nose cone to improve visibility of the runway and taxiways. When in flight, the nose would be raised. Concorde also had a moving visor that would slide into and out of the nose. The Tu-144's visor was part of the nose and did not retract.
Document 3: Kutta–Joukowski theorem: The Kutta–Joukowski theorem is a fundamental theorem of aerodynamics used for the calculation of the lift of an airfoil and any two-dimensional bodies including circular cylinders translating in a uniform fluid at a constant speed large enough so that the flow seen in the body-fixed frame is steady and unseparated. The theorem relates the lift generated by an airfoil to the speed of the airfoil through the fluid, the density of the fluid and the circulation around the airfoil. The circulation is defined as the line integral around a closed loop enclosing the airfoil of the component of the velocity of the fluid tangent to the loop. It is named after the German Martin Wilhelm Kutta and the Russian Nikolai Zhukovsky (or Joukowski) who first developed its key ideas in the early 20th century. Kutta–Joukowski theorem is an inviscid theory, but it is a good approximation for real viscous flow in typical aerodynamic applications.
Document 4: Circulation (fluid dynamics): In fluid dynamics, circulation is the line integral around a closed curve of the velocity field. Circulation is normally denoted Γ (Greek uppercase gamma). Circulation was first used independently by Frederick Lanchester, Wilhelm Kutta, and Nikolai Zhukovsky.
Document 5: Ludwig Prandtl: Ludwig Prandtl (4 February 1875 – 15 August 1953) was a German engineer. He was a pioneer in the development of rigorous systematic mathematical analyses which he used for underlying the science of aerodynamics, which have come to form the basis of the applied science of aeronautical engineering. In the 1920s he developed the mathematical basis for the fundamental principles of subsonic aerodynamics in particular; and in general up to and including transonic velocities. His studies identified the boundary layer, thin-airfoils, and lifting-line theories. The Prandtl number was named after him.
Document 6: TsAGI: The Central Aerohydrodynamic Institute (Russian: "Центра́льный аэрогидродинами́ческий институ́т" , "ЦАГИ", transliterated as "Tsentralniy Aerogidrodinamicheskiy Institut", TsAGI) was founded in Moscow by the pioneer of Russian aviation, Nikolai Yegorovich Zhukovsky on December 1, 1918.
Document 7: Reynolds number: The Reynolds number (Re ) is an important dimensionless quantity in fluid mechanics used to help predict flow patterns in different fluid flow situations. It has wide applications, ranging from liquid flow in a pipe to the passage of air over an aircraft wing. The Reynolds number is used to predict the transition from laminar to turbulent flow, and used in the scaling of similar but different-sized flow situations, such as between an aircraft model in a wind tunnel and the full size version. The predictions of onset of turbulence and the ability to calculate scaling effects can be used to help predict fluid behaviour on a larger scale, such as in local or global air or water movement and thereby the associated meteorological and climatological effects.
Document 8: Sukhoi: Nine years prior to the creation of the bureau, Pavel Sukhoi, a Soviet Russian aerospace engineer, took over team no. 4 of the CAHI's AGOS aviation, flying boat aviation and aircraft prototype engineering facility, in October 1930. Under Sukhoi's leadership, the team of the future design bureau started to take shape. The team, under the Tupolev OKB, produced experimental fighters such as the I-3, I-14, and the DIP, a record-breaking RD aircraft, the Tupolev ANT-25, flew by famous Soviet aviators, Valery Chkalov and Mikhail Gromov, and the long-range bombers such as the Tupolev TB-1 and the Tupolev TB-3.
Document 9: Abramovich Flyer: The Abramovich Flyer was an early aircraft built by Russian aviator Vsevolod Mikhailovich Abramovich in 1912, based on the Wright brothers' designs he had seen while working for their German subsidiary. Differences from the Wright designs of the time included wheeled undercarriage and conventional empennage replacing the canard the Wrights used. Abramovich retained the wing warping technique the Wrights used for banking the aircraft, but controlled this with a control stick rather than the hip-controlled harness of the Wrights' design. Using this aircraft, Abramovich was successful in setting many early aviation records in Russia, including carrying several passengers.
Document 10: Nikolay Yegorovich Zhukovsky: Prof Nikolay Yegorovich Zhukovsky (Russian: Никола́й Его́рович Жуко́вский ; January 17 [O.S. January 5] 1847  – March 17, 1921) was a Russian scientist, mathematician and engineer, and a founding father of modern aero- and hydrodynamics. Whereas contemporary scientists scoffed at the idea of human flight, Zhukovsky was the first to undertake the study of airflow. He is often called the Father of Russian Aviation.
Document 11: Nikolay Mitrofanovich Krylov: Nikolay Mitrofanovich Krylov (Russian: Никола́й Митрофа́нович Крыло́в , Ukrainian: Микола Митрофанович Крилов ) (29 November [O.S. 17 November] 1879 – May 11, 1955) was a Russian and Soviet mathematician known for works on interpolation, non-linear mechanics, and numerical methods for solving equations of mathematical physics.
Document 12: Richard von Mises: Richard Edler von Mises ( ; ] ; 19 April 1883 – 14 July 1953) was a scientist and mathematician who worked on solid mechanics, fluid mechanics, aerodynamics, aeronautics, statistics and probability theory. He held the position of Gordon-McKay Professor of Aerodynamics and Applied Mathematics at Harvard University. He described his work in his own words shortly before his death as being on
Document 13: Describing function: In control systems theory, the describing function (DF) method, developed by Nikolay Mitrofanovich Krylov and Nikolay Bogoliubov in the 1930s, and extended by Ralph Kochenburger is an approximate procedure for analyzing certain nonlinear control problems. It is based on quasi-linearization, which is the approximation of the non-linear system under investigation by a linear time-invariant (LTI) transfer function that depends on the amplitude of the input waveform. By definition, a transfer function of a true LTI system cannot depend on the amplitude of the input function because an LTI system is linear. Thus, this dependence on amplitude generates a family of linear systems that are combined in an attempt to capture salient features of the non-linear system behavior. The describing function is one of the few widely applicable methods for designing nonlinear systems, and is very widely used as a standard mathematical tool for analyzing limit cycles in closed-loop controllers, such as industrial process controls, servomechanisms, and electronic oscillators.
Document 14: Joukowsky transform: In applied mathematics, the Joukowsky transform, named after Nikolai Zhukovsky, is a conformal map historically used to understand some principles of airfoil design.
Document 15: Igor Sikorsky: Igor Ivanovich Sikorsky (Russian: И́горь Ива́нович Сико́рский ; ] , "Ígor' Ivánovič Sikórskij"; , "Ihor Ivanovych Sikorskyi"; May 25, 1889 – October 26, 1972), was a Russian-American aviation pioneer in both helicopters and fixed-wing aircraft. First success came with the S-2, the second aircraft of his design and construction. His fifth airplane, the S-5, won him national recognition as well as F.A.I. license Number 64. His S-6-A received the highest award at the 1912 Moscow Aviation Exhibition. and in the fall of that year the aircraft won for its young designer, builder and pilot first prize in the military competition at Petrograd.
ground_truth: a conformal map