One-dimensional modeling of ram accelerator at high acceleration rates in the subdetonative velocity regime

Autor:	Adam P. Bruckner, Ph. Bauer, Carl Knowlen
Rok vydání:	2004
Předmět:	Propellant Equation of state Projectile Chemistry Ram accelerator Thrust Mechanics Condensed Matter Physics Control volume Electronic Optical and Magnetic Materials Physics::Fluid Dynamics Acceleration symbols.namesake Classical mechanics Mach number symbols Instrumentation
Zdroj:	The European Physical Journal Applied Physics. 29:253-258
ISSN:	1286-0050 1286-0042
DOI:	10.1051/epjap:2004225
Popis:	The predicted acceleration performance of the ram accelerator at elevated pressures, based on the quasi-steady model, is much greater than that observed in experiments. This discrepancy is attributed to the increase of mass of the propellant accumulating in the control volume, such that it approaches the mass of the projectile itself. A revision of the conservation equations to account for unsteady flow effects was conducted. The corresponding predicted thrust as a function of Mach number is significantly less than that derived from the quasi-steady model. By using a virial-type equation of state for the combustion products, a better agreement with experimental data was obtained using this unsteady modeling approach.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b45827d862103ed9350aaa7af22fc374 https://doi.org/10.1051/epjap:2004225 Zobrazit plný text záznamu