A Godunov method for Lagrangian hydrodynamics in 1D
Technical Report
·
OSTI ID:6732934
For transient problems involving strong shocks, the artificial viscosity method has been the standard in numerical hydrodynamics for many years. An alternative approach was suggested by Godunov and it is gaining acceptance. We consider a Godunov method for 1D Lagrangian calculations and show that in the case of a strong shock moving through a nonuniform mesh the Godunov solution is superior to the artificial viscosity solution. For uniform mesh shock problems in spherical geometry the two methods give comparable results. 4 refs., 9 figs.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6732934
- Report Number(s):
- UCID-20966; ON: DE87005204
- Country of Publication:
- United States
- Language:
- English
Similar Records
Calculation of shock problems by using four different schemes
Comparison of Modern Methods for Shock Hydrodynamics
Conference
·
Sat Dec 31 23:00:00 EST 1983
·
OSTI ID:6872148
Comparison of Modern Methods for Shock Hydrodynamics
Conference
·
Mon Jun 13 00:00:00 EDT 2005
·
OSTI ID:877783
Related Subjects
640410* -- Fluid Physics-- General Fluid Dynamics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
99 GENERAL AND MISCELLANEOUS
990230 -- Mathematics & Mathematical Models-- (1987-1989)
FLUID MECHANICS
HYDRODYNAMICS
MECHANICS
NUMERICAL SOLUTION
ONE-DIMENSIONAL CALCULATIONS
SHOCK WAVES
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
99 GENERAL AND MISCELLANEOUS
990230 -- Mathematics & Mathematical Models-- (1987-1989)
FLUID MECHANICS
HYDRODYNAMICS
MECHANICS
NUMERICAL SOLUTION
ONE-DIMENSIONAL CALCULATIONS
SHOCK WAVES