A5074472231- Fluid Dynamics and Turbulent Flows
- Computational Fluid Dynamics and Aerodynamics
- Differential Equations and Boundary Problems
- Differential Equations and Numerical Methods
- Oceanographic and Atmospheric Processes
- Nonlinear Differential Equations Analysis
- Wind and Air Flow Studies
- Geomagnetism and Paleomagnetism Studies
- Geological formations and processes
- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Probabilistic and Robust Engineering Design
- Metallurgical Processes and Thermodynamics
- Aerodynamics and Acoustics in Jet Flows
- Particle Dynamics in Fluid Flows
- Fluid Dynamics and Vibration Analysis
- Numerical methods for differential equations
- Probiotics and Fermented Foods
- Particle accelerators and beam dynamics
- Aerodynamics and Fluid Dynamics Research
- Meteorological Phenomena and Simulations
- Cardiac Valve Diseases and Treatments
- Solar and Space Plasma Dynamics
- Cardiovascular Function and Risk Factors
- Coastal and Marine Dynamics
University of Latvia
2014-2025
Lomonosov Moscow State University
2003-2021
Moscow State University
2015-2021
Murmansk Arctic State University
2021
Russian Academy of Sciences
2019
Joint Institute for Nuclear Research
2014-2016
D.V.Efremov Institute of Electrophysical Apparatus (Russia)
1998-2013
Vrije Universiteit Brussel
1970-2013
Daugavpils University
2010-2012
Texas Tech University
2006-2010
We study a priori estimate, existence, and uniqueness of solutions with symmetric derivatives for third-order boundary value problem. The main tool in the proof our existence result is Leray-Schauder continuation principle. Two examples are included to illustrate applicability results.
The paper presents the computational results of an ongoing validation effort two polynomial chaos methods used in non-deterministic simulations transonic flow NASA Rotor 37 axial compressor. In first stage, a code to comparison on geometry allows exploring different influences computed mean and standard deviation pressure field output functionals interest as inlet mass rate, isentropic efficiency ratio. are concerned with management uncertainties: one operational origin imposed outlet static...
The conditions under which submerged momentum disturbances can penetrate upward and create detectable signatures on the water surface were studied using laboratory experiments. Unsteady maneuvering motion of a self-propelled body or an impulsive turbulent jet was used as (controlled) disturbance, located in upper homogeneous layer stable two-layer stratified fluid with deep lower layer. experiments conducted at high Reynolds numbers (>104), corresponding to fully wake/jet flows....
The solutions of third-order three-point boundary value problemx′′′+f(t,x) = 0, t∈[a,b],x(a) =x′(a) x(b) =kx(η),whereη∈(a,b),k∈R,f∈C([a,b]×R,R) andf(t,0)6= are the subject thisinvestigation. In order to establish existence and uniqueness results for solutions,attention is focused on applications corresponding Green’s function. As anapplication, also one example given illustrate result.Keywords:Green’s function, nonlinear problems, boundaryconditions, solutions.
The aim of this paper is to present the results experiments conducted in a stratified fluid with momentum source modeled by moving jet asymptotic case when size negligibly small but resulting force (momentum flux), which acts on fluid, remains finite. In forcing may be considered as “point” and problem has no obvious characteristic length scale, compared bluff body. latter, towed horizontally frequently leaves behind highly organized vortex street, characteristics strongly depend body...
Abstract Previous laboratory experiments and associated numerical models of laminar flows forced by oscillatory, along-shelf background currents are extended to include some the effects boundary-generated turbulence. The conducted in 13-m-diameter rotating-flow facility Grenoble, France. Two pairs case studies, one at a large forcing velocity (designated as FAST) for which boundary layers fully turbulent during part flow cycle relatively smaller (SLOW) transitional operative higher speeds...
The bacteriolytic activity of interleukin-2 and chicken egg lysozyme in the presence various substances has been studied. Glycine lysine do not affect but increase that lysozyme, showing a bell-shape concentration dependence peaking at 1.5 mM glycine 18 lysine. Arginine glutamate activate both with saturation type. Aromatic amino acids have almost no effect on lysozyme. amines, tryptamine, tyramine inhibit Peptide antibiotics interleukin similarly exhibit maximum micromolar range...
The author considers two point third order boundary value problem with asymmetric nonlinearity. structure and oscillatory properties of solutions the nonlinear autonomous ordinary differential equation are discussed. Results on estimation number to provided. An illustrative example is given.
The general characteristics of the effect surfactants on activity lysozyme were demonstrated. kinetics bacterial cell lysis is consistent with Michaelis-Menten equation and presence does not shift pH-optimum activity. Surfactants do change Km value but instead, affect Vmax value. experimental dependencies are well described by theoretical equations, which assume three surfactant binding sites molecule. concentration either a step type (i.e., higher plateau becomes lower plateau), or...
This paper aims at determining the most influential inlet turbulence parameters on downstream transitional mixing region. To this end, a stochastic method is developed to generate divergence-free random velocity field with prescribed energy distribution in physical and wave-number space. In addition, predetermined integral length scales can be established. Ten direct numerical simulations of temporally evolving turbulent layer are examined detail. Simulation results show large disparity mean...
Nuclotron-based Ion Collider fAcility (NICA) is a new accelerator collider complex under construction at the Joint Institute for Nuclear Research. The facility aimed providing experiments with heavy ions up to Gold in center of mass energy from 4 11 GeV/u and an average luminosity 1 · 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">27</sup> cm xmlns:xlink="http://www.w3.org/1999/xlink">-2</sup> s...
The bacteriolytic activity of interleukin-2 and hen egg white lysozyme against 34 different species microorganisms has been studied. It was found that 6 are lysed in the presence interleukin-2. All interleukin-2-sensitive belong either to Enterobacteriaceae, Bacillaceae, or Lactobacillaceae family. also 12 lysozyme, 16 sodium dodecyl sulfate (SDS). studied at various pH values.