Shock wave interaction with turbulence: Pseudospectral simulations

Conference · Tue Dec 30 04:00:00 EST 1986

OSTI ID:6910851

Buckingham, A C

Shock waves amplify pre-existing turbulence. Shock tube and shock wave boundary layer interaction experiments provide qualitative confirmation. However, shock pressure, temperature, and rapid transit complicate direct measurement. Computational simulations supplement the experimental data base and help isolate the mechanisms responsible. Simulations and experiments, particularly under reflected shock wave conditions, significantly influence material mixing. In these pseudospectral Navier-Stokes simulations the shock wave is treated as either a moving (tracked or fitted) domain boundary. The simulations assist development of code mix models. Shock Mach number and pre-existing turbulence intensity initially emerge as key parameters. 20 refs., 8 figs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6910851
• Report Number(s): UCRL-95866; CONF-8611115-3; ON: DE87004357
• Country of Publication: United States
• Language: English

Related Subjects

656002 -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
657002* -- Theoretical & Mathematical Physics-- Classical & Quantum Mechanics
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
AMPLIFICATION
COMPUTERIZED SIMULATION
DATA
DIFFERENTIAL EQUATIONS
ELEMENTS
EQUATIONS
FLUID FLOW
INFORMATION
NAVIER-STOKES EQUATIONS
NITROGEN
NONMETALS
NUMERICAL DATA
PARTIAL DIFFERENTIAL EQUATIONS
SHOCK WAVES
SIMULATION
THEORETICAL DATA
TURBULENCE
VISCOUS FLOW