A.V.Luikov Institute of Heat and Mass Transfer of the NAS of Belarus offers consumers services for femtosecond laser visualization of gas-dynamic processes under an outsourcing agreement or subcontracting and is looking for partners to conclude a distribution services agreement.

Femtosecond laser visualization of gas dynamics is a modern method for studying high-speed and complex phenomena in gases. This method utilizes ultrashort laser pulses (femtosecond duration) to obtain highly accurate temporal and spatial information about gas dynamics.

A.V.Luikov Institute of Heat and Mass Transfer of the NAS of Belarus has developed a stand for femtosecond laser visualization of fast processes of gas dynamics, including the propagation of supersonic gas flows and shock waves. The stand allows you to qualitatively and quantitatively evaluate individual parameters of the medium along the pipe section, as well as the dynamics of the process.

The stand includes a shock tube, an IAB-451 shadow device, a laser system of femtosecond pulses, and equipment that records the parameters of gas flows - pressure and ionization sensors.

Shock tubeThe shock tube makes it possible to initiate various gas-dynamic and energy-exchange processes with arbitrary parameters. To study them, sensors and viewing windows are mounted in the measuring section, through which optical radiation shines through the gaseous medium. The discharge of the gas mixture from the high pressure chamber is carried out using a system of solenoid valves.

Shadow device IAB-451

The shadow device implements the Schlieren visualization method and consists of illuminating and receiving parts. In this stand, the measuring section of the shock tube is placed between the coaxial parts of the shadow device. The optomechanical elements of the Schlieren method circuit are installed in the cylindrical cases of the IAB-451 parts.

Femtosecond pulse laser

The laser is designed to illuminate visualized optical inhomogeneities. Femtosecond laser pulses were used as an illumination source (laser knife) in the implementation of the PIV method for measuring the particle velocity.

Stand characteristics:

Shock tube:
total length	8 m
internal section of the copper channel	90×45 mm
Femtosecond pulse laser:
pulse duration	100 fs
radiation energy	0.2 mJ
amount of elements	100
optical table dimensions	1800×900 mm

Areas of research: continuum mechanics, gas dynamics, plasma mechanics.

The Institute offers partners services for femtosecond laser visualization of gas-dynamic processes under an outsourcing agreement or subcontract.

More."Actual developments, research, measurements and tests" Catalog-2021, pp.57-58(in Russian)

The stand was created using modern technological equipment and the latest measuring equipment.

Highly qualified personnel.

Trial schlieren visualization of gas flows and shock wave fronts was carried out.

Some functional units of the laser are unique developments of the B.I. Stepanov Institute of Physics of the NAS of Belarus.

The A.V. Lykov Institute of Heat and Mass Transfer of the National Academy of Sciences of Belarus is the country's largest scientific institution, focusing on fundamental and applied problems of heat and mass transfer, fluid dynamics, energy, thermal engineering, chemical physics, combustion and explosion physics, and nanotechnology. It also develops energy-efficient and environmentally friendly technologies and equipment, as well as apparatus and instruments for power engineering and mechanical engineering, the agro-industrial complex and construction industries, medicine, the chemical, electronics, radio engineering, food, and space industries.

Main areas of scientific and technical activity:
- heat and mass transfer processes in capillary-porous bodies, dispersed systems, rheological and turbulent media, nonequilibrium flows, low-temperature plasma, and radiation-matter interactions;
- dynamics, transport, and elementary processes in systems with chemical and phase transformations;
- Physical kinetics, heat transfer, and transport processes at the micro- and nanoscale;
- Energy-efficient heat and mass transfer technologies, equipment, and apparatus;
- Transport processes, heat transfer in biological systems and complex molecules;
- Physical and structural properties of substances, materials, and surfaces under internal structuring and extreme conditions;
- Mechanics of fluids, gases, and plasma;
- Mechanics and rheology of viscoelastic media under shear, temperature, and electromagnetic influences;
- Numerical methods and software packages for the numerical modeling of physicochemical and heat transfer processes;
- Catalytic technologies and equipment for producing hydrogen, synthesis, endo-, and exo-gases, synthetic and composite fuels;
- Technologies and equipment for producing nano- and microstructures and materials;
- Plasma, plasma-chemical, and chemical methods of waste purification and disposal.

The Institute organizes:
Minsk International Forum on Heat and Mass Transfer;
International Conference "Heat Pipes, Heat Pumps, Refrigerators, and New Energy Sources";
International Conference "Methodological Aspects of Scanning Probe Microscopy";
Minsk International Colloquium on the Physics of Shock Waves, Combustion, and Detonation;

The Institute hosts the editorial board of the Engineering Physics Journal, which is republished in English by Springer.

The Institute maintains scientific, scientific-organizational, and scientific-industrial cooperation with academic and industry research institutes, universities, design bureaus, associations, and enterprises in Belarus, Russia, Ukraine, Kazakhstan, Moldova, Uzbekistan, Lithuania, Latvia, China, the USA, India, Germany, Poland, the Czech Republic, Israel, Brazil, Italy, France, and other countries.

Official website of the A.V. Lykov Institute of Heat and Mass Transfer.

Consumers interested in purshasing services for femtosecond laser visualization of gas-dynamic processes under an outsourcing agreement or subcontracting.

Partners interested in purshasing femtosecond laser visualization services for gas-dynamic processes under a distribution services agreement.