Results 71 to 80 of about 6,709 (233)
The annular flow electrothermal ramjet [PDF]
17th Fluid Dynamics, Plasma Dynamics, and Lasers Conference, 1984 The annular flow, electrothermal, plug ramjet is examined as a possible means of achieving rapid projectile acceleration to velocities for such applications as direct launch of spacebound payloads. The performance of this ramjet operating with hydrogen propellant is examined for cases where this working fluid is treated: (1) as a perfect gas, and (2 ...
B. SHAW, C. MITCHELL, P. WILBUR
openaire +1 more source
Flow Field Characteristics of High‑Gradient Mixing Layers and Laws of Energy Transfer
Nanjing Hangkong Hangtian Daxue XuebaoA numerical simulation study is conducted on the flow field characteristics and laws of energy transfer of the high-gradient mixing layer in a rocket-assisted ramjet engine （RARE） .
YANG Yiding +3 more
doaj +1 more source
Combustion of polymethylmethacrylate in a solid fuel ramjet
Journal of Propulsion and Power, 1990 The combustion behavior of polymethylmet hacrylate (PMMA) in a solid fuel ramjet (SFRJ) was investigated using a connected pipe test facility. The study was oriented towards understanding the most important phenomena related to the combustion in an SFRJ. Regression rates have been determined, and spectroscopy has shown the occurrence of OH, C2, and CH.
Wijchers, T. +3 more
openaire +3 more sources
Unsteady flow characteristic analysis of turbine based combined cycle (TBCC) inlet mode transition
Propulsion and Power Research, 2015 A turbine based combined cycle (TBCC) propulsion system uses a turbine-based engine to accelerate the vehicle from takeoff to the mode transition flight condition, at which point, the propulsion system performs a “mode transition” from the turbine to ...
Jun Liu, Huacheng Yuan, Guo Rongwei
doaj +1 more source
Impulse Correlation for Partially Filled Detonation Tubes [PDF]
, 2004 The effect of nozzles on the impulse obtained from a detonation tube of circular cross section has been the focus of many experimental and numerical studies. In these cases, the simplified detonation tube is closed at one end (forming the thrust surface)
Cooper, M., Schauer, F., Shepherd, J. E.
core +1 more source
Rheology and Stability of Hydrocarbon-Based Gelled Fuels for Airbreathing Applications
AerospaceGelled fuels are rheologically complex, non-Newtonian fluids. They combine the benefits of both liquid and solid states, reducing risks of leakage, spilling, and sloshing during storage while maintaining the ability to be sprayed inside a combustion ...
Simone Dell’Acqua +3 more
doaj +1 more source
Eurasian Chemico-Technological JournalThe experimental study was carried out to investigate the gasification of urotropine (hexamethylenetetramine) in a low-temperature solid fuel gas generator under varying inlet gas flows. Nitrogen was applied as the filter gas.
E.A. Salgansky +3 more
doaj +1 more source
Direct Contact Among Galactic Civilizations by Relativistic Interstellar Spaceflight [PDF]
, 1962 Direct contact among galactic populations by relativistic interstellar ...
Sagan, Carl
core +1 more source
Boron-loaded gel fuel as potential fuel for ramjet and scramjet engines- recent advancements
FirePhysChemBoron, a high-energy metalloid has been recognized as a potential secondary energy source for liquid hydrocarbon fuel to power volume-limited propulsion devices such as ramjet and scramjet.
R. Madhumitha, Srinibas Karmakar
doaj +1 more source
Structural Integrity Analysis of Nozzleless Booster Propellant Grain in the Process of Curing and Cooling [PDF]
Hangkong bingqiIn order to accurately evaluate the structural integrity level of the solid rocket ramjet nozzleless booster propellant grain during curing and cooling, the structural integrity of the nozzleless booster propellant grain of a solid rocket ramjet engine ...
Kui Bin, Liu Qiang, Na Xudong, Liu Jue
doaj +1 more source