Inverse estimation of absorption coefficient in absorbing, emitting, non-scattering mediaas a function of temperature

An inverse analysis is employed to estimate the unknownabsorption coefficient distribution as a function oftemperature along a one-dimensional absorbing-emittingplane-parallel medium from the knowledge of the measuredradiation intensities over black surfaces. The discreteordinates method is employed to solve the radiative transferequation and a conjugate gradient method is used forminimization of an objective function, which is expressedby the sum of square residuals between estimated andsimulated exit radiation intensities. Finally, we presentsome numerical results in order to examine the accuracy ofthe method for estimating the distribution of absorptioncoefficient.

کلیدواژه ها:

Inverse analysis ، absorption coefficient ، participating media ، discrete ordinates method