Numerical investigation of the physics of rotating-detonation-engines

Numerical simulation of a Rotating Detonation with a realistic injector designed for separate supply of gaseous hydrogen and oxygen

“…Semi-analytical and simple 0D models have been developed to evaluate the theoretical performance of RDE, as in [13,14]. Even 15 if parametric studies are more complex with 2D/3D numerical tools, numerical simulations are now commonly used, as in [15,16,17,18,19,14,20,21], because they can depart from too simplifying assumptions and give a deep insight into the flow physics. Most of time the injection of a perfect fuel-oxidizer mixture was considered in the simulations.…”

Airbreathing Rotating Detonation Wave Engine Cycle Analysis

“…The attached oblique shock in the combustor attenuates at the end of the annulus as seen in computational results [15,34,41]. For modeling purposes, it is then sufficient to assume that the pressure and temperature distributions can be averaged at the end of the annulus before being exhausted through a nozzle.…”

“…Fixing the exit Mach number to 1.0 has resulted in a useful model for performance predictions. However, the computational RDE combustors detailed in recent research have an exit Mach number above 1.0 [15,34,41], so fixing the exit Mach number at 1.0 underestimates performance. The model used to calculate the exit velocity in the current work is based on the study by Nordeen et al where the work required to turn the flow in the combustor must be accounted for with a total enthalpy loss using the Euler pump equation and rothalpy [28].…”

“…Recent computational efforts have shown that stable RDE combustor flow can be realized with high efficiency [15,29,34,41]. Experimental studies have demonstrated that it can be operated for a wide variety of fuels and injection conditions [5,7,19].…”

Trends in the development of detonation engines for high-speed aerospace aircrafts and the problem of triple configurations of shock waves. Part I. Research of detonation engines

“…Использование различных углеводородных топлив рассматривается в работе [83], а результаты численных расчетов сравниваются с данными, полученными для водорода [84].…”