An OpenMP version of the parallel algorithm for calculation of unsteady gas flow through porous objects with energy sources: analysis and application

The gas flows in the gravity field through the porous objects with energy sources, which may originate from the natural or man-caused disasters, have been investigated. An OpenMP version of the parallel algorithm has been developed for the calculation of unsteady 2D gas flows through porous self-heating media of complex subsurface geometries. The structure of the sequential algorithm and the transition from it to the OpenMP version have been described, the performance and efficiency of parallelization have been analyzed. The unsteady gas flows through axisymmetric porous self-heating objects with a partial closure of the object outlet (with a top cover) have been investigated by means of the developed parallel algorithm. The influence of the partial closure of the object outlet on the cooling process of the porous objects with a non-uniform distribution of heat sources has been analyzed.