Modeling of radiative - conductive heat transfer in compositing materials

A layer of composite material is investigated, which is heated one-sidedly with one-dimensional energy transfer accounting for thermal conductivity and radiation. A mathematical model is suggested for non-stationary coefficient thermophysical problem under radiative-conductive heat transfer in a material layer. Temperature dependencies of thermal capacity and thermal conductivity coefficient of composite radio-transparent material have been determined through numerical modeling by solving the coefficient reverse problem of thermal conductivity

MIRROR SPACE ANTENNA REFLECTOR MADE OF COMPOSITE MATERIALS CONSTRUCTIVE APPEARANCE DETERMINATION

This article describes search studies of optimal design and technological solutions for the ultralight mirror space antenna reflectors made of CFRP. The studies included finite element modeling of the reflector temperature and stress-strain state in the geostationary orbit. As a result of comparing the results of a number reflector variants modeling, a design was chosen, with minimal values of temperature displacements and linear densit

MODELLING OF HEAT EXCHANGE IN FLEXIBLE CONDUCTORS OF HALOGEN LAMPS OF THERMAL TEST FACILITY

Current work is dedicated to the evaluation of the possibility of safety use of serial halogen lamps for high power radiating heating test facilities with active cooling of the bulbs. Complex modeling of electrical and thermal processes occurring at various (standard, forced and extreme) facility operation modes has been carried out. The temperature values in the individual elements of the lamp supply system are obtained. A variant of the booth design, which provides the cooling of flexible wires and bus lines by the air flow, is rational from the point of safety and ensuring long-term uninterrupted operation view

NANOSATELLITE BODY COMPOSITE MATERIAL THERMAL CONDUCTIVITY DETERMINATION COMPUTATIONAL AND THEORETICAL METHOD

In this paper, we present a technique for determining the thermal conductivity of an anisotropic composite material (CM) of a body of nanosatellite on a contact heating installation. A description is given of the technique of a thermal physics experiment with CM samples in the form of thin-walled plates, which were parts of the body of nanosatellite