The discontinuous spectral element method (DSEM) coupled with an element-by-element sweeping strategy is proposed as a solution to the radiative transfer equation (RTE) for participating media in irregular geometries. In the solving processing. a spatial domain of RTE is discretized by unstructured meshes; an angular direction of RTE is discretized as a set of contrast angles by struc... https://chefesquipmenters.shop/product-category/hand-sinks/