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.

В работе представлен набор аппаратно-программных средств, разработанный специалистами ИВТ СО РАН и ИТПМ СО РАН, предназначенный для автоматизации сбора данных и управления высокоскоростным аэродинамическим экспериментом на аэродинамической трубе адиабатического сжатия ИТПМ СО РАН, а также создания АСУ технологическими и научными установками. The paper presents a set of hardware and software developed by specialists of ICT SB RAS and ITAM SB RAS, designed to automate data acquisition and control of a high- aerodynamic experiment on the adiabatic compression wind of ITAM SB RAS, as well as the creation of ACS technological and scientific installations.

Experimental modeling of processes and phenomena in wind tunnels is one of the main research field in modem 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 research. The authors' task was to provide a researcher with convenient and flexible tool for automating high-speed experimental scientific research in AT-303 (AT-304) and Transit-M hypersonic wind tunnels, which would allow configuring hardware and software to meet the requirements of a particular experiment.

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, feed pipes, cylinder working capacity and in the capacity of the pushing gas supplier were measured. The temperature in the working capacity was measured, too. The measurement results show the complex interaction of the mutual motion of the pistons and frame. Simulation of this process permits determining its other parameters such as the distance, velocity, acceleration, force, etc.investigations were carried out at different pressures of the pushing gas and piston motion directions.

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 hardware and software development tools for ICT SB RAS and ITAM SB RAS, as well as subsystems based on them, can be widely applied to any scientific and experimental installations, as well as to the automation of technological processes in production.

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 the fast experiment performance; the developed software is described. The description of the weight test of the model of a small-size high-speed aircraft realized with the present system is presented as an example.

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 database of aerodynamic researches created in ITAM SB RAS for storage of results of aerodynamic researches is considered. The Web-interface intended for ensuring access to stored data on the Internet is presented. Navigation on a database, input, viewing, reading, search, visualization of data is provided.

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 experiments to flight conditions. The EXPERT program implies large-scale preflight research, in particular, various calculations with the use of advanced numerical methods, experimental studies of the models in various wind tunnels, and comparative analysis of data obtained for possible extrapolation of data to in-flight conditions. The experimental studies are performed in various aerodynamic centers of Europe and Russia under contracts with ESA-ESTEC. In particular, extensive experiments are performed at the Von Karman Institute for Fluid Dynamics (VKI, Belgium) and also at the DLR aerospace center in Germany. At ITAM SB RAS, the experimental studies of the EXPERT model characteristic were performed under ISTC Projects 2109, 3151, and 3550, in the T-313 supersonic wind tunnel and AT-303 hypersonic wind tunnel.