3. DESCRIPTION OF PROGRAM OR FUNCTION
SIMPLE calculates two- dimensional hydrodynamics and heat flow over a rectangular Lagrange mesh. The code has been provided to give a realistic approximation to a complete computer application, as opposed to the use of inner loops, for timing studies on new machines. SIMPLE was prepared as a
test vehicle, or benchmark problem, for the development of a language to express data-driven computation. In SIMPLE two types of boundary conditions are available: (1) a pressure may be applied to any surface and (2) the component of acceleration normal to the surface may be set = 0 along any surface.