Gregory Papadopoulos

US Patent:

53771290, Dec 27, 1994

Filed:

Mar 12, 1993

Appl. No.:

8/030573

Inventors:

Kim Molvig - Reading MA
Gregory M. Papadopoulos - Burlington MA

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

G06F 1560

US Classification:

364378

Abstract:

Fluid flow is simulated by a massively parallel data processor having combinational logic for processing collision rules at lattice sites. Following collision processing, particle representations are moved to different sites dependent on direction and velocity of the particles. The collision rules are based on collisions of particles positioned at sites of a three-dimensional lattice. Particle representations identify particles of plural energy levels, and the collision rules allow for transfer of energy between particles. Particle representations relate to particles which move along four-dimensional face-centered hypercube lattices which project to the three-dimensional lattice. The lattice may include interfacing grids of different unit dimensions depending on the resolution required in individual volumes of space.

US Patent:

54327180, Jul 11, 1995

Filed:

Aug 16, 1994

Appl. No.:

8/291414

Inventors:

Kim Molvig - Reading MA
Gregory M. Papadopoulos - Burlington MA

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

G06F 1900

US Classification:

364578

Abstract:

Fluid flow is simulated by a massively parallel data processor having combinational logic for processing collision rules at lattice sites. Following collision processing, particle representations are moved to different sites dependent on direction and velocity of the particles. The collision rules are based on collisions of particles positioned at sites of a three-dimensional lattice. Particle representations identify particles of plural energy levels, and the collision rules allow for transfer of energy between particles. Particle representations relate to particles which move along four-dimensional face-centered hypercube lattices which project to the three-dimensional lattice. The lattice may include interfacing grids of different unit dimensions depending on the resolution required in individual volumes of space.