The viscosity temperature dependence in the boundary friction model under a periodic external action
Investigation the tribological system behavior with help of the thermodynamic model, which takes into consideration the dependence of the effective polymeric lubricant viscosity on the temperature and velocity gradient within phase transition model.
Подобные документы
The model of chaotic behavior nucleons in nuclei, based on the model of nuclear interactions and the Fermi-Dirac statistics. Energy potential of nucleons at a constant temperature in the range of parameters. Discrete model of the energy levels in nuclei.
статья, добавлен 29.04.2017Molecular–statistical model of the organization of the epitropic liquid-crystal phase. The experimental temperature dependences of the thickness of the epitropic liquid crystalline layers nitroben zene on quartz. The thermodynamic model parameters.
статья, добавлен 23.11.2016Phase transition for US gauge field is considered. A lower bound of the phase transition temperature by comparing of the average energy for the perturbative and nonperturbative regimes is estimated. In a scalar model of glueball its energy is calculated.
статья, добавлен 29.04.2017Lorenz system a model, that allows to describe the behavior of the plasma-condensate system near phase equilibrium. Influence of the fluctuations of the growing surface temperature the evolution equation and the corresponding Fokker-Planck equation.
статья, добавлен 30.07.2016The theoretical analysis of the behaviour of the stream function, temperature, and local solid fraction for the model of ideal mushy layer. Estimates for the main characteristics of the process are found for the large values of the Rayleigh number.
статья, добавлен 25.03.2016Characteristic the model of chaotic behavior of nucleons in nuclei, based on the model of nuclear interactions and the Fermi-Dirac statistics. The results of the study and a graphic representation of the chaotic behavior of nucleons in the coupled system.
статья, добавлен 29.04.2017The study of temperature-frequency dependencies of the conductivity nestekhiometriya spinel. The existence of frequency dispersion of conductivity. The establishment of the value of conductivity, its dependence on the number of Fe2+ ions in the structure.
статья, добавлен 24.02.2016A transmission line model is used to design log periodic of bow-tie antennas arrays operating in C band fed in series with enhanced bandwidth. The transmission line model is simple, precise and allowing taking into account the whole geometrical, electric.
статья, добавлен 04.11.2018The theoretical analysis of the temperature dependences in linear voltammetry in this communacation for reversible and totally irreversible electrochemical processes. Features of studing means of linear voltammetry technique in sulfare solutions.
статья, добавлен 27.07.2016The implementation of the algorithm of the mathematical model, the procedure for calculating the necessary expressions and their type of representation. Programming sequence of the mathematical model consideration. The equations for current and voltage.
статья, добавлен 02.02.2019The essence of temperature is one of the most important factors affecting the coefficient of dielectric loss. This paper presents the investigation of temperature dependences of the microwave dielectric losses for different mechanisms of polarization.
статья, добавлен 29.01.2017The different microscopic models employed to calculate the temperature and concentration dependence of the susceptibility of ferrouids: Weiss, mean-spherical, and high-temperature. The convective instability in microscopic understanding of magnetism.
статья, добавлен 11.09.2012Features of plastic forming (micro creep) of a wide class of fresh-quenched metallic glass (mg) at room temperature and under the action of tensile stresses. The increase in the volume fraction of crystallization centers in the amorphous matrix.
статья, добавлен 29.06.2016The objective of greenhouse heating is to maintain the canopy at a specified temperature range. Infrared (IR) heating as alternative to forced air heating. Use of a simple numerical model to estimate the potential energy savings in a greenhouse.
статья, добавлен 17.04.2013Mechanisms of phase separation in non-stoichiometric solutions of silicon oxide high-temperature annealing. Creating a matrix of silicon oxide and silicon nano-sized inclusions. Analysis of thermodynamic processes during the separation Si/Si oxide phase.
статья, добавлен 30.07.2016- 16. Birthday Balloon
Description of the mathematical model of the rubber ball with the long form of the cylinder (except the ends) with a mouthpiece. Isothermal process of inflating the ball at room temperature while neglecting the weight of the container and gravity.
лекция, добавлен 26.05.2014 Analysis of the working analytical relations describing the focal length of the axicon and its dependence on different geometrical parameters as well as the torsion moment has been derived. Review and characterization describe a gradient-index axicon.
статья, добавлен 29.01.2016Construction of a mathematical model based on a limited set of experimental data. The use of dimensionless complexes that characterize the operation of the reservoir. Numerical solution of the problem of optimizing the operation of the collector.
статья, добавлен 02.03.2021- 19. Intrinsic point defects in anisotropic crystalline systems (quasi-two NbSe2 and quasi-one NbSe3)
Heat treatment of single crystals of NbSe2 and NbSe3. The complex investigation of the temperature dependences of resistance NbSe3 and NbSe2 in different environments in the field of 300-550 K. The relative change of the linear dimensions NbSe2.
статья, добавлен 22.12.2016 Closed model of the turbulent boundary layer, obtained from the Navier-Stokes equations. Fundamental constants of near-wall turbulence, including the Karman constant. Determination of the accelerated and nonisothermal boundary layer over a rough surface.
статья, добавлен 27.04.2017The model of a continuous transition from laminar to turbulent flow in the boundary layer. The theory of the spectral density of turbulent pulsations is developed. Continuous transition to turbulence. Spectral characteristics of turbulent flows.
статья, добавлен 27.04.2017The different surface energies. Grain boundary prewetting and premelting phase transitions. Energy, segregation, mobility and diffusivity in the systems Cu–Bi, Al–Ga, Al–Pb, Fe–Si–Zn. Grain boundary phase transitions and the properties of polycrystals.
статья, добавлен 28.10.2018Development of model for prestellar clouds. Thermal and chemical evolution. Effects of cosmic microwave background radiation. Role of metals in dust phases: a minimum model for metallicity effects. Reduced chemical model for low-metallicity clouds.
статья, добавлен 13.11.2013Thermal treatment results in the formation of additional amorphous nanoclusters and in their crystallization with anneal temperature increasing. Nitride films annealed at 1200 °C contain crystalline Si clusters only. Characteristics of SiNx films.
статья, добавлен 30.07.2016Semiclassical approach based on the Vlasov equation for finite systems with moving surface. Study isovector dipole excitations heated spherical nuclei with neutron excess. Collision integral in the approximation of the effective relaxation time.
статья, добавлен 18.11.2013