“…An efficient fuel injection system necessitates for complete combustion of hydrogen fuel in the scramjet combustor, which could enhance the mixing and combustion of fuel and air with minimum total pressure loss. Various injection and flame holding strategies such as flush wall injection (Goyne et al, 2001;Tahani et al, 2016), cavities (Assis et al, 2019;Jeyakumar et al, 2006Jeyakumar et al, , 2017Jeyakumar et al, , 2018Wang et al, 2020), pylons (Doster et al, 2007;Gruber et al, 2008;Lee, 2012) and struts (Bresson et al, 2001;Huang et al, 2017;Liu et al, 2019) and their combinations (Freeborn et al, 2009;Lakka et al, 2021;Montes et al, 2005;Suneetha et al, 2019aSuneetha et al, , 2019b were attempted and succeeded to some extend by many researchers. A strut-based injector configuration is among the ones that could solve the aforementioned issues and also limit the total pressure loss.…”