Multi-wave effects on stability and performance in rotating detonation combustors

Recently, with the development of detonation-based propulsion systems, scholars have begun to study how perform mode control on rotating detonation combustor (RDC). It is important figure out influence operation transition RDC. Actually, essential different modes multi-wave structures. In this study, two-dimensional numerical simulations RDC are conducted effect stability and performance A uniform inlet condition adopted in eliminate impact discrepancy mass flow rates, a mode-locked ignition method used induce fields wave numbers. found that field outlet uniformity improved increasing counts, energy proportion little affected by structure. However, increase number will cause reduction mass-averaged total pressure ratio at exit. Underlying relationship between unsteady gain discussed. The directly linked non-uniformity circumferential field. Then, utilizing particle trace, envelope thermodynamic cycle illustrated pseudo-thermal efficiency each case given. result implies has hardly thermal combustion chamber. By summarizing perimeter, axial length, combustor, parameter ξ carried its effects concluded.