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Abstract
Transient radiative transfer in highly-scattering media subjected to time-dependent pulse train heating conditions is scrutinized. A basic problem in which a cube is exposed to a unit step irradiation is first solved via the transient discrete-ordinates method, and the influences of the spatial grid and time step are examined. The temporal solutions for the basic problem are then used for constructing the responses of the same cube subjected to the irradiation of pulse trains via the superposition method. The effects of the pulse width and time interval between the pulses are studied. The characteristics of pulse train irradiation are revealed. The present approach is simple because only one basic solution is needed to construct the solutions for various problems with different pulse widths and/or pulse intervals.
Acknowledgments
The authors acknowledge financial support from Japan Society for the Promotion of Science (Excellent Young Researcher Overseas Visit Program, grant no. 21-5113) for this work.