Comparison of Numerically Simulated and Experimentally Measured Performance of a Rotating Detonation Engin

Determining the Pressure Gain of Pressure Gain Combustion

“…For this paper, the analytical RDE results were obtained using a quasi-two-dimensional RDE CFD code that has been detailed in the literature [4][5][6][7][8]. The model basis is a high resolution, computational fluid dynamic (CFD) algorithm that integrates the quasi-two-dimensional, single-species, reactive Euler equations with source terms.…”

“…The working fluid is assumed to be a single, calorically perfect, premixed gas. Relevant properties used in all calculations of this paper are a real gas constant, Rg, of 73.92 ftlbf/lbm/R, and a ratio of specific heats, γ, of 1.264 [9][10].…”

“…Due to the simplicity of this sub-model, two reaction rate constants are required: a large one for regions of detonation and a smaller one for regions of deflagration. Based on past validation efforts with experiments [10,14], the deflagrative rate constant is set to a value such that, in combination with other fluid dynamic processes, approximately 6% of the premixed RDE throughflow reacts in this region. The remaining 94% detonates.…”

Investigation of the Pressure Gain Characteristics and Cycle Performance in Gas Turbines Based on Interstage Bleeding Rotating Detonation Combustion

“…g a,c + g f P * 3c + g a,m P * 2 = g a + g f P * 3 (17) where g a,c is the mass flow rate of the combustion air, g a,m is the mass flow rate of the mixing air, g f is the mass flow rate of the fuel, and P * 3 , T * 3 , π 3 respectively represent the total pressure, total temperature and composite pressure ratio at the state point of 3.…”

“…Due to the difficulty of the high Mach number environment in the standing oblique detonation combustion process [11] and the high frequency ignition in the pulse detonation combustion process [12], rotating detonation with its wide working range and self-sustaining propagation has been attracting increasing attention. The evolution characteristics of rotating detonation wave [13,14], the thermodynamic characteristics of rotating detonation flow fields [15][16][17][18][19] and the propulsion performance of the rotating detonator combustor (RDC) [20][21][22] have been investigated with a series of experiments and numerical studies.…”