This paper presents the numerical simulation results of the thermal process in a perforated graphite sheet obtained by meshless method for solving threedimensional non-stationary heat conduction problems in anisotropic solids [1,2].
The article is devoted to the development of software for modelling electromagnetic wave with thin conductive fibers interaction in the form of a circular cylinder. The software allows you to adjust such physical parameters as the electrical conductivity of the investigated fiber, the range of wavelengths of electromagnetic radiation, the range of fiber diameters and the complex refractive index. Software calculates the values of the efficiency factors of attenuation, scattering and absorption of the electromagnetic wave by the fiber, followed by their visualization in the form of graphs on the basis of the received data.
Modern equipment elements in the energy, chemical industry, transport, aviation, and space engineering work under conditions of increased technological loads, at high temperatures and pressure levels. At the same time, the equipment is usually exposed to external loads of various natures. Hydroelastic phenomena must also be taken into account in designing and modernizing tanks and storage facilities for flammable and combustible substances. Flammable and combustible liquid accumulation leads to the increased environmental and fire hazard of such objects. The possible dangerous liquid leakage and tank depressurization negatively affect the surrounding area environment state. A fire in the tank is one of the most dangerous emergencies that could lead both to significant material and environmental damage and to human casualties. The paper treats the environmental hazards reducing problem from liquid hydrocarbon spills from storage tanks, which lead to destructive effects on all environment components especially during emergency situations. It has been established for sufficiently thin tank elastic walls, the fundamental frequency during coupled oscillations could be much lower than the frequency of the fluid in the shell with rigid walls. As the thickness of the tank wall increases, this effect becomes insignificant, and the lower oscillation frequency of the shell with liquid approaches the oscillation frequency of the liquid in a rigid tank. Parametric resonance and sub-resonance effects have been treated.
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