SALE2D; general transient fluid flow algorithm. [CDC7600,CYBER175; FORTRAN IV]

Technical Report ·

OSTI ID:6433043

Amsden, A A; Hirt, C W

SALE2D calculates two-dimensional fluid flows at all speeds, from the incompressible limit to highly supersonic. An implicit treatment of the pressure calculation similar to that in the Implicit Continuous-fluid Eulerian (ICE) technique provides this flow speed flexibility. In addition, the computing mesh may move with the fluid in a typical Lagrangian fashion, be held fixed in an Eulerian manner, or move in some arbitrarily specified way to provide a continuous rezoning capability. This latitude results from use of an Arbitrary Lagrangian-Eulerian (ALE) treatment of the mesh. The partial differential equations solved are the Navier-Stokes equations and the mass and internal energy equations. The fluid pressure is determined from an equation of state and supplemented with an artificial viscous pressure for the computation of shock waves. The computing mesh consists of a two-dimensional network of quadrilateral cells for either cylindrical or Cartesian coordinates, and a variety of user-selectable boundary conditions are provided in the program.CDC7600,CYBER175; FORTRAN IV; SCOPE 2.1, LTSS, NOS 1.3; 165,000 (octal) words of memory are required for the report version, which allows up to 800 mesh points. The memory requirement will increase if more mesh points are used.

• Research Organization: Los Alamos National Lab., NM (USA)
• OSTI ID: 6433043
• Report Number(s): ANL/NESC-900; ON: DE83048900
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
COMPUTER CODES
DIFFERENTIAL EQUATIONS
EQUATIONS
FLUID FLOW
FLUID MECHANICS
MECHANICS
NAVIER-STOKES EQUATIONS
PARTIAL DIFFERENTIAL EQUATIONS
S CODES
TWO-DIMENSIONAL CALCULATIONS
VELOCITY
VISCOSITY