FINITE-ELEMENT ANALYSIS OF THE SCRAMACCELERATOR WITH HYDROGEN OXYGEN COMBUSTION

The Scramaccelerator concept is examined through numerical calculation s. A finite element algorithm for inviscid dow calculations is coupled to a chemistry package, and simulations of steady-state detonation wa ves in a mixture of hydrogen and oxygen are performed for several valu es of Mach number, projectile-to-tube diameter ratio, mixture equivale nce ratio, and fill pressure. The results are expressed in the form of thrust on the projectile. It is concluded that acceleration on the or der of 10(5) m(2)/s on a 200-g projectile could be achieved under the conditions considered.