Propellant Technologies: Far-Reaching Benefits for Aeronautical and Space-Vehicle Propulsion

Kinetic modelling of the ignition delays in monomethylhydrazine/hydrogen/oxygen/argon gaseous mixtures

“…The prospects for new propellant combinations are an important aspect of research in the aerospace field [1,2]. The introduction of promoters (or inhibitors) allows variation of the ignition delays and the creation of fuel systems suitable for use in real engines [3].…”

Oxidation mechanism of micron-sized aluminum particles in Al-CO2 gradually heating system

“…(1) Add extra constant high temperature process to special samples. (2) Stop heating process at different temperature and collect the samples. (3) Reheat the samples in a certain condition and compare the different oxidation mechanism.…”

“…Micron-sized aluminum powders are often added into various energetic materials, including pyrotechnics, explosives, and rocket propellants. It is because that the performance of energetic materials can be highly improved such as the oxidation enthalpy and the combustion temperature, especially the motor acoustic stability [1][2][3][4] In recent several decades, basic understanding of aluminum combustion mechanisms has been improved significantly in experimental and theoretical investigations [5][6][7][8][9]. However, it is difficult to determine the accurate reactive mechanism because the different properties of aluminum powders, for instance, the specific surface area, particle size and distribution, different synthetic methods, environment condition, core@shell structure of aluminum powder [10,11] will eventually influence the oxidation mechanism of aluminum.…”

Three-Dimensional Numerical Method for Supercritical Heat Transfer of Hydrocarbon Fuels

“…Supercritical heat transfer of hydrocarbon fuels plays a key role in the regenerative cooling process for scramjet (Palaszewski, Ianovski & Carrick, 1998;Huang, Spadaccini, & Sobel, 2004). The combustor wall of scramjet combustor endures high heat flux from the high temperature gases.…”