“…However, to give a sense of the variety of DRB methods, we do mention that examples of existing optimized DRB schemes include upwind-type schemes [24,31,41,42], multi-scale and multi-gridsize schemes [4,35], DRB schemes with non-uniform girds for general geometry [9,31], composite boundary schemes [15,16,18,19], optimized prefactored compact schemes [2], and optimized DRB schemes that couple space-time discretization [27,29]. In addition to the development of optimized DRB schemes, there are also comparison studies of the performance of optimized DRB schemes [12,25,26,43], applications of DRB schemes in fluid flow and non-linear waves [10,11,29,30], and error dynamics of optimized DRB schemes [28]. 1.3.…”