Heat Transfer in Thermal Testing of Structures Using Tubular Radiation Sources

The great advantage of tubular radiation sources is the possibility of their arrangement in blocks to heat complex profile constructions by a given spatiotemporal law of heat flux density variation. However, the development of designs of such blocks is associated with the solution of a number of problems caused by discreteness and geometric parameters of the arrangement of individual radiation sources in the heating blocks, which leads to the influence of these factors on regularities of heating of the test object, as well as by the peculiarities of mutual influence of the arrangement of individual radiation sources on their performance. Thus, in the general case, rational use of tubular radiation sources requires solving the problems of radiative and radiative-conductive heat transfer in a closed system of radiating and absorbing bodies.