Free-Lagrangian hydrodynamics using massless tracer points
Conference
·
OSTI ID:5484780
The partial differential equations (PDEs) describing the time evolution of compressible fluid flow in two and three dimensions are usually solved numerically in the Eulerian frame of reference as opposed to the Lagrangian frame. This is especially true of flows involving large distortions. Lagrangian codes based upon Lagrangian cells do not run very long when the cells become distorted. In order to avoid the problem of cell distortion we have developed a Lagrangian code named ''HOBO'' based upon massless tracer points. These tracer points can be thought of as being embedded in, and moving with the fluid. The PDEs which we are trying to solve at each of the points are four equations which represent conservation of mass, momentum and energy, and an equation of state.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5484780
- Report Number(s):
- LA-UR-86-2118; CONF-8606136-1; ON: DE86012406
- Country of Publication:
- United States
- Language:
- English
Similar Records
Compressible Lagrangian hydrodynamics without Lagrangian cells
Eulerian computational methods
Eulerian computational methods
Conference
·
Mon Dec 31 23:00:00 EST 1984
·
OSTI ID:5717861
Eulerian computational methods
Conference
·
Mon Dec 31 23:00:00 EST 1990
·
OSTI ID:5608000
Eulerian computational methods
Conference
·
Mon Dec 30 23:00:00 EST 1991
·
OSTI ID:10123860