Collision operators in physical process simulation

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United States of America Patent

PATENT NO 5640335
SERIAL NO

08409685

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Abstract

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A computer implemented method for simulating a physical process. The method includes storing in a memory a state vector for each of a number of voxels. Each state vector includes a plurality of integers, each of which corresponds to a particular momentum state of a number of possible momentum states at a voxel and represents the number of elements having the particular momentum state. Each integer has more than two possible values. The method also includes performing interaction operations that model interactions between elements of different momentum states and include interaction rules that operate on a subset of the integers of a state vector. The interaction rules comprise a collision operator that transfers between integers representing a first set of momentum states and integers representing a second set of momentum states a number of elements that is determined based on the number of elements in the first and second sets of momentum states. Finally, the method includes performing move operations on the state vectors that reflect movement of elements to new voxels.

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Patent Owner(s)

Patent OwnerAddress
DASSAULT SYSTEMES SIMULIA CORP1301 ATWOOD AVENUE SUITE 101W JOHNSTON RI 02919

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Molvig, Kim Concord, MA 8 313
Teixeira, Christopher M Cambridge, MA 7 216
Traub, Kenneth R Watertown, MA 23 793

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