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Publications (32)
The paper presents a software package for modeling the dynamic processes of the working gas passing through an arbitrary set of tanks connected by an arbitrary set of pipelines Calculations were carried out for various combinations of tank joints, including modeling complex aerodynamic installations of ITAM SB RAS.
Experimental modeling of processes and phenomena in wind tunnels is one of the main research field in modern super- and hypersonic aerodynamics. Effective experiments are impossible to implement without developing new aerodynamic installations and overhauling existing ones by equipping them with modern automation systems designed for scientific res...
This paper presents the system of synchronization for automated fast gas-dynamic experiments, including the experiments with combustion. The system permits using both super- and hypersonic processes in the pulse mode, the duration ranging from several milliseconds to seconds. Under consideration are individual elements of the system, technique of t...
The adiabatic heater which is the part of the working gas source in the hypersonic wind tunnel was tested in dynamic experiments. They were carried out in a special test bench which provided the off-design modes of the heater performance: there was no mechanism of piston motion damping, and the frame was not mounted. The pressures in the receiver,...
In this paper, we propose a variant of constructing automation systems for aerodynamic experiments on the basis of modern hardware-software means of domestic development. The structure of the universal control and data collection system for performing experiments in wind tunnels of continuous, periodic or short-term action is proposed. The proposed...
Dynamic characteristics of an ohmic heater intended for heating the working-gas flow in hot-shot wind tunnels have been experimentally studied. The experiments were performed on a specially designed test facility. Experimental data on the dynamic characteristics of the heater were obtained.
The European EXPErimental Re-entry Test bed (EXPERT) vehicle is intended
for studying various basic phenomena, such as the boundary-layer
transition on blunted bodies, real gas effects during shock
wave/boundary layer interaction, and effect of surface catalycity.
Another task is to develop methods for recalculating the results of
windtunnel experi...
Results of tests of the technology for preventing deposit formation through periodic pneumoimpulsive actions, which was developed
at the Institute of Engineering and Applied Mechanics, Siberian Division, Russian Academy of Sciences (Novosibirsk), are presented.
Based on an analysis of the causes of the appearance of solid formations on the inner su...
The possibility of arranging a gas generator with the heat-release process being controlled by supplying a gaseous oxidizer
is experimentally checked. Gaseous hydrogen, liquid gasoline, and solid hexamethylene tetramine (solidified alcohol) is used
as a fuel. The gas generator with a proposed configuration is demonstrated to ensure stable operation...
Aerodynamic coefficients of the HB-2 AGARD reference model measured in a new AT-303 hypersonic wind tunnel with adiabatic
compression are presented. The experiments are performed in the ranges of Mach numbers M = 9.7 − 15.6 (Red = 0.14·106 − 1.32·106) and angles of attack α = −4°−12° with the use of an internal six-component strain-gauge balance. T...
The structure and principle of operation of a new wind tunnel AT-303 with adiabatic compression are described. Results of
systematic investigations are presented in terms of velocity distributions both at the nozzle exit and in the region where
the models are located. The velocity fields are obtained with the use of total pressure probes in the ran...
On the basis of computer simulation of the physicochemical process of segregation of doping impurities implanted in the basic material (silicon), the features of ejection of V(a) subgroup elements (phosphorus, arsenic, and antimony) on the angular configurations of the silicon/silicon dioxide oxidation boundary are investigated.
A number of problems associated with the nonuniqueness of numerical solutions of the Navier–Stokes equations used for simulating processes of a hypersonic real gas flow past blunt bodies are considered. The processes of evolution of a stationary pattern of flow perturbed by a single pulse at an initial time instant are considered at different value...
Based on computer simulation of the physicochemical segregation processes involving dopants implanted into a host material (silicon), the details of boron injection were investigated for four types of angular configurations (direct and inverse kinks and cavities of the "trench" and "square" types) of the "silicon/silicon dioxide" oxidation boundary...
This paper is aimed at developing modern computer technologies and methods of concurrent programming designed to improve the efficiency of solving fundamental scientific and applied problems of numerical simulation in aerodynamics and physical gas dynamics. Theoretical issues concerning the design of aircraft involving large amounts of computations...
The special features of hypersonic gas flow over blunt bodies with excitation of additional degrees of freedom (vibrational
or electronic) are studied using computer modeling based on numerical integration of the nonstationary system of complete
Navier-Stokes equations. Calculations over a wide range of determining parameters indicated the existenc...
Numerical simulation was used to analyze the quasi-periodic process induced against the steady flow pattern around a blunt
forebody by a pulse from an external source located in the incoming stream.
The development of turbulent supersonic (M=3) separated flows in the neighborhood of two-dimensional steps with variation of the upwind face inclination angle over the range 8-90°is studied. A comparison of the comprehensive experimental and numerical data on the gasdynamic structure, the surface distributions of pressure and friction, and also the...
The axisymmetric supersonic laminar flow of a viscous heat-conducting gas around a blunt-body nose is investigated by comparing the results of numerical integration of complete Navier-Stokes equations and those obtained by using the analytical Brykina-Sakharov formula [I. G. Brykina and V. I. Sakharov, Fluid Dyn. 31, No. 1, 107-113 (1996); translat...
