Abstract
AbstractTo obtain accurate flood analysis results, research using high‐resolution Digital Elevation Models is becoming important and studies to increase the calculation speed and accuracy are being performed. Numerous researchers have studied parallelisation techniques to improve the accuracy of urban flood analysis by grid resolution and by 1D/2D coupled models. However, there have been few studies on the effects of interacting discharge between the surface and sewerage system on urban flooding analysis using parallelisation techniques. Therefore, in this study, the efficiency of the OpenMP parallelisation technique was investigated according to grid size and type to analyse the influence of the distribution of storm drain boxes on the results of fully integrated 1D/2D urban inundation modelling focused on the interacting discharge between the surface and storm drain boxes.
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