Patent ID: 11893329
Assignee: TRIAD NATIONAL SECURITY, LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. An apparatus, comprising:
at least one processor; and
memory coupled to the at least one processor and configured with instructions that, when executed by the at least one processor, cause the apparatus to:
perform a numerical simulation with a solid mesh comprising a plurality of solid nodes and a fluid mesh comprising a plurality of fluid nodes including by:
determining a fluid-solid interaction between the fluid mesh and the solid mesh at a time step by:
(i) immersing boundaries of the solid and fluid meshes,
(ii) computing current corrected fluid and solid velocities using an interaction parameter applied to an intermediate fluid-solid relative velocity, and
(iii) computing a fluid-solid interaction force based on the current corrected fluid and solid velocities;

wherein the determining the fluid-solid interaction comprises an implicit determining within an explicit fluid solver of the numerical simulation,
wherein the explicit fluid solver is integrated, as opposed to coupled, into a combined finite-discrete element method (FDEM) solver of the numerical simulation.