Reconstruction of the Flow Cross-Section Temperature Based on the Radiation Balance Between Infinitesimal

Abstract

The reconstruction of three-dimensional temperature field is a difficult problem. But three-dimensional temperature measurement can be simplified by the reconstruction of the flow cross-section temperature. In this paper, a theory of reconstruction is proposed and a simulation test system is implemented by MATLAB based on emission spectra tomography (EST) and radiation temperature measurement, which also take the emission and absorption characteristics in the processing of radiative transfer under consideration. Finally, by analyzing the difference of the original temperature and reconstructed temperature we can get the accuracy of the reconstruction theory.

Thermal computed tomography for biological tissue reconstruction based on radiation balance

“…The 3-D structural reconstruction of an optical-thin biological object is very complicated, but it can be simplified by the reconstruction of a monochromatic radiant intensity with the TCT technique, as shown in Fig.2a [8,9].. In continuous space, a layer is taken parallel to the xoy plane, which is then discretized into M and N even grids in x and y direction as shown in Fig.2b, and hence the number of grids is N k =M×N.…”

Low-Temperature Performance and Damage Constitutive Model of Eco-Friendly Basalt Fiber–Diatomite-Modified Asphalt Mixture under Freeze–Thaw Cycles

“…The results show that BF can effectively improve the flexural–tensile strain. Liu et al [12] studied the variation and influence of fibers on the low-temperature performance of asphalt mastic and asphalt mixtures though the bending beam rheometer (BBR) test and low-temperature beam bending test. The results reveal that the addition of BF brings a lower creep stiffness and higher creep rate for asphalt mastic at low temperature.…”