Two-way rigid body coupling in shallow water simulations
US8041550B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2008 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Jan 25, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2111/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
One embodiment of the present invention sets forth a technique for computing two-way rigid body coupling in a two-dimensional height field simulation, such as a shallow water simulation. Coupling from a rigid body to a fluid is computed using fluid displacement of the body in each grid cell. The body is projected onto a simulation plane to determine which grid cells are covered by the body. Fluid displacement from the body is computed for each grid cell based on displacement within a corresponding vertical column of fluid. Fluid displacement is distributed to neighboring grid cells prior to a height field computation. Coupling from the fluid to the rigid body is computed by integrating forces imparted on the body by the fluid at each grid cell. The integrated forces are used to compute a new position for the body in a subsequent simulation time step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.