Russian Aeronautics

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Calculation of High-Speed Flow past a Thin Plate Edge Using the Navier–Stokes–Fourier Model and Model Kinetic Equation
Russian Aeronautics - - 2024
Yu. A. Nikitchenko, E. E. Krasavin
The paper considers the problem of high-velocity flow past a perfectly sharp edge. The solution was carried out using the model kinetic equation for polyatomic gases and the Navier–Stokes–Fourier model. The method of solving the problem is described. The distribution of gas parameters is calculated on the plate surface and above it. Gas parameters are analyzed near the sharp edge. The Navier–Stoke...... hiện toàn bộ
Calculation of Reliability Parameters of Onboard Harness with Aluminum Wires
Russian Aeronautics - Tập 66 - Trang 396-403 - 2023
I. S. Vasil’ev, S. V. Efremov, A. P. Leonov, S. B. Suntsov
The paper presents the results of calculating the reliability of the cables of the spacecraft onboard harness made of aluminum wires for space application. The calculation was based on the results of qualification tests of type representatives of cables with soldered and crimped connections of aluminum wires. Similar copper wire connections were also tested to compare results. The results of the p...... hiện toàn bộ
A combined approach to scheduling aperiodic problems in real-time systems
Russian Aeronautics - - 2007
С. А. Данилова
On choice of the blade back profile curvature in transonic turbine cascades
Russian Aeronautics - Tập 54 - Trang 159-164 - 2011
B. I. Mamaev
Some design and experimental data on three cascades with the same 12° bending angle for the primary nozzle block of a gas turbine are presented. As is seen from the investigation the most efficient at the transonic velocities of the outward flow are the blades, the back curvature of which in the bevel cut zone decreases to the trailing edge. Also presented is the fact that the blade with the incre...... hiện toàn bộ
To selection of the model fluid for hydrogen simulation in testing of seals
Russian Aeronautics - Tập 60 - Trang 223-228 - 2017
A. V. Moskvichev, A. V. Ivanov
The paper discusses the applicability of cold gaseous nitrogen as a model working fluid in testing the hydrogen pump seals for power plants by three-dimensional modeling.
Aerodynamic Design of Pusher Propeller for a Promising Rotorcraft
Russian Aeronautics - Tập 63 Số 2 - Trang 283-289 - 2020
Shaidakov, V. I., Ignatkin, Yu. M., Shomov, A. I., Makeev, P. V.
A method based on the complex application of the actuator disk and finite-blade vortex theories is presented for aerodynamic design of the pusher propeller of a promising rotorcraft for vertical takeoff and landing. The software package was created that allows us to select the propeller parameters, create its 3D model and calculate aerodynamic characteristics in semi-automatic mode.
Influence of Interference Effects of the Rotor on the Launch Dynamics of Gliding Unmanned Aerial Vehicle
Russian Aeronautics - Tập 61 - Trang 363-370 - 2018
V. T. Grumondz, A. S. Al’bokrinova, S. V. Noskov
A mathematical model of the gliding unmanned aerial vehicle (UAV) motion is performed taking into account the interference effect of the main rotor on the UAV. Calculated values are presented for the interference addition to the aerodynamic coefficients of forces and moments on the UAV path section close to the carrier. The problems of stabilization and control are solved, providing stability of t...... hiện toàn bộ
Pressure determination in impregnation of fabrics by a binder polymer
Russian Aeronautics - Tập 58 - Trang 133-136 - 2015
M. S. Salina, Yu. P. Kataev
The pressure, necessary for shaping the parts from polymeric materials with a fabric filler, is determined. It is assumed that the necessary pressure should provide filling of the whole fabric interthread space by the binder polymer.
Calculation of fuel distribution in the combustion chamber front device equipped with a three-stage swirler
Russian Aeronautics - Tập 50 Số 4 - Trang 395-401 - 2007
V. V. Tret’yakov
Đánh giá phân tích fractal đối với vi gia tốc trong điều kiện giảm chấn yếu của các yếu tố đàn hồi trong tàu vũ trụ. II Dịch bởi AI
Russian Aeronautics - - 2007
A. V. Sedel’nikov
Sử dụng hàm fractal Weierstrass-Mandelbrot, một số vấn đề liên quan đến việc đánh giá thích hợp các vi gia tốc trên tàu vũ trụ được xem xét. Các khoảng giá trị cho các tham số của hàm cũng được xác định, cho phép mô phỏng thành phần tĩnh gần đúng của các vi gia tốc.
#vi gia tốc #tàu vũ trụ #hàm fractal #Weierstrass-Mandelbrot #thành phần tĩnh gần đúng
Tổng số: 986   
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