A conservative free Lagrange code. (English) Zbl 0584.76039
The free-Lagrange method, Proc. 1st Int. Conf., Hilton Head Island/S.C. 1985, Lect. Notes Phys. 238, 255-280 (1985).
[For the entire collection see Zbl 0573.00014.]
A free Lagrange code for two-dimensional hydrodynamics, designed specifically to facilitate later generalisation to three-dimensional applications. The program sets up a network of triangular meshes filling a convex region within specified boundaries. The nodes of the network are Lagrangean in the region actually occupied by fluid, and Eulerian elsewhere. Fluid nodes are preserved throughout the subsequent hydrodynamic motion. The mesh lines connecting pairs of nodes are changed automatically whenever appropriate.
A free Lagrange code for two-dimensional hydrodynamics, designed specifically to facilitate later generalisation to three-dimensional applications. The program sets up a network of triangular meshes filling a convex region within specified boundaries. The nodes of the network are Lagrangean in the region actually occupied by fluid, and Eulerian elsewhere. Fluid nodes are preserved throughout the subsequent hydrodynamic motion. The mesh lines connecting pairs of nodes are changed automatically whenever appropriate.
MSC:
76D05 | Navier-Stokes equations for incompressible viscous fluids |
76N15 | Gas dynamics (general theory) |
76D25 | Wakes and jets |
76M99 | Basic methods in fluid mechanics |