Numerical simulation of fluid flow around a scramaccelerator projectileNumerical simulations of the fluid motion and temperature distribution around a 'scramaccelerator' projectile are obtained for Mach numbers in the 5-10 range. A finite element method is used to solve the equations of motion for inviscid and viscous two-dimensional or axisymmetric compressible flow. The time-dependent equations are solved explicitly, using bilinear isoparametric quadrilateral elements, mass lumping, and a shock-capturing Petrov-Galerkin formulation. Computed results indicate that maintaining on-design performance for controlling and stabilizing oblique detonation waves is critically dependent on projectile shape and Mach number.
Document ID
19910036793
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Pepper, Darrell W. (Advanced Projects Research, Inc. Moorpark, CA, United States)
Humphrey, Joseph W. (Advanced Projects Research, Inc. Moorpark, CA, United States)
Sobota, Thomas H. (Advanced Projects Research, Inc. Moorpark, CA, United States)