Unsteady 2D gas-liquid flows with account of phase and film interaction Pressure variation along the nozzle wall accelrating water-and-air flow (the flow passes from left to right)
Spray density (kg•(m2•s) -1) by gas-droplet jet radius at the nozzle exit
Comparison of droplet jet boundary obtained in numerical experiment with photographing results 
Unsteady turbulent 3D single-phase flows including instability, turbulence and conjugated heat exchange Mach number distribution in multi-nozzle steam ejector
Water monitor passage updating by secondary flow parameters at the nozzle exit cross-section
Room fire extinguishing modeling. Water drop concentration and temperature fields
Room fire extinguishing modeling. Water drop size is 100 mcm. Velocity and temperature fields
Fire in a room 2x3 meter modeling. Fields of free convection velocity and
temperature
Noise and pseudo-sound oscillation modeling of pumps, fans, turbines and other blade units This approach gives a possibility to construct an efficient and more
accurate calculation technique in comparison to typical CFD-CAA methods.
Design and experimental pressure pulse amplitude distribution of the first
blade passing frequency harmonic in a centrifugal ventilator. A version of
an acoustical-and-turbulent method for three-dimensional calculations may be
used for axial and diagonal pump and ventilator, water jet, lawn mower, and
wind turbine design.Grass particle concentration in a lawn mower deck.Mown
grass particle concentration in lawn mower deck.
Centrifugal fan pressure pulsation computation and measurement
In-plane rotor pseudosound field (a) and acoustic field at the ground (b)
and around a làwn mower (c)
Unsteady pressure field in a high speed centrifugal pump
Different directions of Laboratory work represented by particular examples:
1. Interior three-dimensional single-phase flows including instability, turbulence and conjugated heat exchange simulation
2. Interior heterogeneous flows. A mathematical model of a dense aerosol flow
allowing to predict gas and droplet parameters was developed at the
Laboratory. The account of boundary condition variations allows the
numerical modeling accuracy increase. Numerical simulations give a liquid
distribution in gas-liquid fire fighting system monitors. For a backpack
fire fighting unit allowed to numerically define basic oscillation
frequencies of a nozzle-effluxing liquid film, determine main performance
parameters of the units effecting the extinguishing liquid jet features.
3. Vortex method of pressure pulse and noise computation in subsonic flow
turbo-machines. A method of numerical pressure pulse and noise simulation in
blade machines was developed at the Laboratory based on representation
of unsteady compressible media motion in the form of a vector sum of a
turbulent mode (pseudo-sound) and an acoustical mode. This approach gives a
possibility to construct an efficient and more accurate calculation
technique in comparison to typical CFD-CAA methods of computing. This method
is applied for pressure pulse and noise computation in pumps, ventilators,
lawn mowers and wind turbines.
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