M. V. Agafontsev

Experimental study of flame characteristics during the combustion of certain types of liquid hydrocarbon fuels

The paper represents experimental studying the scales of turbulent vortices in diffusion flames by using the measurements of thermodynamic characteristics obtained by thermography and the aerodynamic characteristics obtained by the PIV method.

Experimental and numerical study of temperature fields and flows in flame during the diffusion combustion of certain liquid fuels

The paper represents experimental studying the pulsations of temperature fields and the structure of a flow in the flame formed during the combustion of certain fuels. Also, the paper provides the mathematical modeling of a flow in the flame formed during the combustion of diesel fuels, as well as the comparison with experimental data and the estimation of the scale for turbulent vortices in flame. The experimental results are in satisfactory agreement with numerical modeling, which confirms the hypothesis of similarity for the pulsations of hydrodynamic and thermodynamic parameters.

Calibration of the thermal imager during the experimental study of the plasma jet impact on CO2

This paper provides the method for the calibration of the thermal imager to be used in the experimental studies of the temperature field in the plasma jet, using carbon dioxide as a working medium.

Estimation of the turbulence scales in flame during diffusion diesel fuel combustion

This paper presents the results of mathematical modeling of the flow in the flame produced during the combustion of diesel fuel and the experimental estimation of the turbulent eddy scale in the flame using thermography methods. Comparison of the numerical results and the experimental data shows that the basic thermodynamic parameters of the flame are in good agreement with the scale of turbulent eddies in the flame.

Effect of low energy fluctuations on the spectrum of the temperature change in flame

This paper presents the experimental study concerning the infrasound effect on the spectrum of the temperature change in flame during the combustion of ethanol.

Contactless study of the flame structure during diffusion combustion for certain types of liquid hydrocarbon fuels

The paper presents the experimental estimation of the turbulent eddy scales in diffusion flames based on the results of thermodynamic characteristic measurements using the thermography and the aerodynamic characteristics obtained by the PIV – method.

Application of thermography in experimental studies of plasma jets

The paper presents the experimental studies of the optical properties for the plasma jet in the mid-IR range.

Еstimation of the turbulence scale in flame using the method of IR diagnostics

The paper presents the experimental measurements of temperature fields in a narrow mid-infrared spectral range during combustion of different fuels (plant fuels, alcohol, petroleum, kerosene, and diesel fuel). The spectra of temperature changes are obtained in flame. The scale of turbulence in flame is estimated on the basis of temperature nonuniformity measurements and the analysis of temperature spectra in flame.

Justification of choice of the spectral range for the study of combustion processes with the use of thermography in the middle IR range

The paper presents the emission spectra of flame formed during combustion of different fuels and gives the grounds for application of various narrow spectral ranges in the mid-infrared region to record the temperature fields in flame and flame screened objects.