A method for computing the radial temperature profiles in high-pressure, high-current arcs

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Abstract
A method is described for calculating the radial temperature profiles of wall-stabilised arcs in which the energy loss due to radiation is dominant. The radiative energy loss is evaluated using equations derived from the first two moments of the radiative transfer equation (i.e. the diffusion approximation). These equations are solved by the orthogonal collocation method to yield the radial distribution of the net emission coefficient. The nonlinear energy balance equation is then solved using a least-squares minimisation technique.

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