Begell House Inc.
International Journal of Fluid Mechanics Research
FMR
2152-5102
26
4
1999
Introduction
ii
Vladimir Grigor'evich
Dmitriev
Central Aerohydrodynamic Institute (TsAGI), Zhukovsky, Moscow region, Russia
The Eightieth Anniversary of TsAGI, Russian Aviation Science Center
425-435
G. S.
Byushgens
Vladimir Yakovlevich
Neiland
Central Aerohydrodynamic Institute (TsAGI), 1 Zhukovsky Str., Zhukovsky 140180, Russia
G. P.
Svishchyov
The first of December is a significant day for Russian science and technology. Eighty years ago, during the hard times for the country an outstanding Russian scientist and mechanical engineer, N.E. Zhukovsky, succeeded in organizing the Central Aerohydrodynamic Institute (TsAGI) in Moscow. He conceived it as an institute covering a wide range of knowledge in different fields and combining theoretical, physical, and experimental investigations and design of various flying vehicles, ships, and industrial objects for which aerodynamics plays a great role.
Professor Zhukovsky's Heritage in Science for Aviation Concerns
436-449
G. P.
Svishchyov
The Wing Theory in the Works of N.E. Zhukovsky and S.A. Chaplygin
450-464
G. Yu.
Stepanov
Development of the Theory of Lift in the Works of N. E. Zhukovsky
465-470
Sergey Vladimirovich
Lyapunov
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia
On Zhukovsky's Vortical Theory for Describing Flow Past a Propeller
471-484
V. S.
Vozhdayev
E. S.
Vozhdayev
The blade-based theory of a propeller is developed by providing exact solutions which do not require numerical integration of velocities from semi-infinite spiral vortices. The induced speed on a lifting line is shown to be describable in terms of coefficients of speed harmonics being multiples of the total number of blades. Speed harmonics of a k-blade propeller are shown to be equivalent to the respective harmonics of a single-blade propeller which are multiplied by the number of blades; this simplifies computation drastically. The first term in the series is the zero-order harmonic of an instantaneous speed; it is the Zhukovsky solution for the induced speed of a propeller with infinitely numerous blades. The second term in the series is the coefficient for the k-th speed harmonic, the third one for the 2k-th one, etc. This growth of the order of harmonics is revealed to drastically reduce amplitudes of the harmonics and accelerate convergence, especially for propellers with large numbers of blades. It is shown that kernels of these coefficients may be integrated analytically over the interval {0,∞} and transformed into a modified first-order Bessel function whose argument is a multiple of the harmonic order. The solutions are implemented in a “rapid” program for aerodynamic calculation of a propeller. An example analysis of circulation, instantaneous speeds, and total propeller characteristics is provided. Also, the article includes a brief review of fundamental studies by Professor Zhukovsky which have been the basis for the development of propeller aerodynamics research and helicopter technologies.
Nonstationary Separated Ideal Incompressible Flow over an Instantly Accelerated Finite-width Plate
485-494
A. N.
Kraiko
K. E.
Lomkov
Valery I.
Kopchyonov
Research Works of N. E. Zhukovsky in Hydrodynamics
495-499
O. P.
Shorygin
G. V.
Logvinovich
State SRC "N. Ye. Zhukovskii's TsAGI", Moscow, Russia
Today, it is difficult to imagine that by the beginning of the scientific activity of Zhukovsky in aerohydrodynamics, such a comprehensive branch of mechanics as hydrodynamics didn't really exist. Its development started later-notably owing to research by Zhukovsky.
Professor N. E. Zhukovsky and Industrial Aerodynamics
500-509
A. S.
Ginevsky
On the Investigations of N. E. Zhukovsky Devoted to Flight Dynamics
510-521
Vasiliy Aleksandrovich
Yaroshevsky
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia
Collection of Manuscripts and Documents by N. E. Zhukovsky
522-525
N. V.
Rubina
A. P.
Krasilshchikov