A numerical study of shock wave refraction at a CO sub 2 /CH sub 4 interface

Conference · Mon Dec 11 04:00:00 EST 1989

OSTI ID:5123757

Puckett, E G

This paper describes the numerical computation of a shock wave refracting at a gas interface. We study a plane shock in carbon dioxide striking a plane gas interface between the carbon dioxide and methane at angle of incidence {alpha}{sub i}. The primary focus here is the structure of the wave system as a function of the angle of incidence for a fixed (weak) incident shock strength. The computational results agree well with the shock polar theory for regular refraction including accurately predicting the transition between a reflected expansion and a reflected shock. They also yield a detailed picture of the transition from regular to irregular refraction and the development of a precursor wave system. In particular, the computations indicate that for the specific case studied the precursor shock weakens to become a band of compression waves as the angle of incidence increases in the irregular regime. 35 refs., 12 figs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• Sponsoring Organization: DOD; DOE/ER
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5123757
• Report Number(s): UCRL-102420; CONF-8904308--1; ON: DE90005997; CNN: IACRO 88-873
• Country of Publication: United States
• Language: English

Related Subjects

640410* -- Fluid Physics-- General Fluid Dynamics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ALKANES
ANGULAR DISTRIBUTION
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
COMPRESSIBLE FLOW
DISTRIBUTION
FINITE DIFFERENCE METHOD
FLUID FLOW
HYDROCARBONS
INTERFACES
ITERATIVE METHODS
METHANE
NUMERICAL SOLUTION
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REFRACTION
SHOCK WAVES
WAVE PROPAGATION