“…In general, the solid fuel scramjet can be categorized into four categories: solid fuel scramjet (SFSRJ), [2][3][4][5][6][7][8] dual mode combustion ramjet (DMRJ), 4,9,10 solid fuel rocket scramjet (SFRSRJ), 11,12 and combined solid fuel scramjet (CSFSRJ). 1,13 In SFSRJ, solid fuel is placed on the wall of combustor.…”