Mathematical models of nonspherical particles’ motion in nonuniform flow were proposed for continuous flow approach as well as for single particles’ motion simulation. Lagrangian approach was used to simulate aerosol flow with nonspherical particles around transversal cylinder. Peculiarities of supercooled water crystallization were investigated via cryostat, infrared spectroscopy, and original devices for supercooled droplets’ impact simulation. The results of the experimental study of the supercooled water crystallization are presented. The relationship between the parameters of intermolecular interaction with the parameters of macroscopic phenomena accompanying the crystallization of supercooled water was determined. Mathematical models of the supercooled liquid crystallization and the expression for the minimum rate for the beginning of the supercooled droplets crystallization on impact with the surface of the aircraft were developed. The numerical and experimental evaluations of physical parameters characterizing the supercooled liquid crystallization in the icing problem are performed. Two-phase boundary layer formation near nanostructutred surface was investigated via molecular dynamics method.

Interaction of supercooled droplets and nonspherical ice crystals with a solid body in a mixed cloud

The results of the numerical studies of transonic flow reconstruction occurring with an increase in the free stream Mach number on a hammerhead cone-cylinder body with a small break angle in the generatrix are presented. A turbulent flow regime is considered. The Reynolds equations with different turbulence models are used. The numerical results are compared to the experimental data and the results of the calculation using the Euler model.

Numerical studies of specific features of the transonic flow reconstruction on a hammerhead model

The paper discusses the features of training cosmonauts to deal with the scientific equipment of the «Proboi» space experiment, the specifics of the implementation and preliminary results of the space experiment aboard the ISS, the tasks of improving scientific equipment and the further development of the experiment.

/pdf/results-of-the-se-proboi-features-of-cosmonaut-training-and-3jnvbf8f86.pdf

Yuriy Mikhaylovich Lipnitskiy

Papers

Nonequilibrium aerosol flow in a supersonic wind tunnel

Punching of pressurized compartment shell of a spacecraft by high-speed particles with generation of acoustic waves

Role of wave disturbances in transonic separated flows