Continuous spin detonation of hydrogen-oxygen mixtures. 1. Annular cylindrical combustors

Abstract

A comprehensive numerical and experimental study of continuous spin detonation of a hydrogen-oxygen mixture in annular combustors with the components supplied through injectors is performed. In an annular combustor 4 cm in diameter, burning of a hydrogen-oxygen gas mixture in the regime of continuous spin detonation is obtained. The flow structure is considered for varied flow rates of the components of the mixture and the combustor length and shape. The dynamics of the transverse detonation wave is numerically studied in a two-dimensional unsteady statement of the problem with the geometric parameters of the combustors consistent with experimental ones. A comparison with experiments reveals reasonable agreement in terms of the detonation velocity and pressure in the combustor. The calculated size and shape of detonation fronts are substantially different from the experimental data.

Experimental research on the rotating detonation in gaseous fuels–oxygen mixtures

“…This ig. 4 Detonation chamber: a scheme of cross-section: D ch , L chamber , internal diameter/length of the chamber; L cylinder , length of cylindrical part; a throat , dimension of the throat; δ, width of the oxygen slit; δch, width of the chamber channel; P 1 , P 2 , P 3 , locations of line gauge pressure; b locations of the chamber pressure transducers approach allowed maximization of the flow rate and degree of mixing rate in the short distance. To control both flows, electromagnetic valves ( Fig.…”

“…In 2004, Tobita (Mitsubishi Heavy Industry), Fujiwara, and Wolanski applied for a Japanese patent on the RDE, and a similar application was repeated for a US Patent in 2005 [3]. Recently, many experimental researches in this field have been conducted in various laboratories [4][5][6][7][8]. The principle of the RDE is based on the creation of continuously propagating detonation in a disk-like combustion chamber (a toroidal or ring-like shape).…”

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

“…A large amount of experimental work has been carried out with the objective to clearly identify these issues and prepare technological solu-10 tions. Different types of fuel and fuel-oxidizer mixtures have been tested, see for example [7,8,9,10,11]. In a first step, the rotating detonation is often studied in small combustion chambers but demonstration chambers are now in development or testing [12].…”

Experimental and numerical study of the rotating detonation engine in hydrogen-air mixtures

“…Yi et al presented a comparison of PDE and RDE [11]. Bykovskii et al [7] described the results of experimental study for hydrogen oxygen mixture. Very extensive experimental and numerical studies on the application of rotating detonation to propulsion systems are carried out in Poland [12 14].…”