公开(公告)号：US20240256735A1

公开(公告)日：2024-08-01

申请号：US18162764

申请日：2023-02-01

Applicant: Dassault Systemes Simulia Corp.

Inventor： Ashraful Islam ,  Hiroshi Otomo ,  Rafael Salazar-Tio ,  Bernd Crouse ,  Raoyang Zhang ,  Hudong Chen

IPC: G06F30/20

CPC classification number: G06F30/20 ,  G06F2113/08

Abstract: A method analyzes physical transport in a proton exchange membrane fuel cell (PEMFC) having three adjacent layers L1, L2, L3, each with a distinct porous structure. A first small scale multiphase simulation S1 of a first portion of the L1/L2 interface is used to characterize the L1/L2 interface. The S1 results are statistically extended to a larger second portion of the L1/L2 interface. The statistically extended L1/L2 interface is used as a boundary condition for a second multiphase simulation S2 to characterize the L2/L3 interface. S1 is repeated using the characterized L2/L3 interface as a boundary condition. S1 and S2 respectively simulate of one or more of momentum, energy, species, and charge transport across the L1/L2 and L2/L3 interface.

公开(公告)号：US20220398807A1

公开(公告)日：2022-12-15

申请号：US17342817

申请日：2021-06-09

Applicant: Dassault Systemes Simulia Corp.

Inventor： Zhuang Sun ,  Rafael Salazar-Tio ,  Andrew Fager ,  Bernd Crouse

IPC: G06T17/20 ,  G06T11/00 ,  G06T15/04

Abstract: Disclosed are computer implemented techniques for conducting a simulation of physical properties of a porous medium. The features include receiving a micro-CT 3D image that captures a representative elemental volume of the porous medium, the porous medium defined as having mineral types and fluid types with individual grains and grain to grain contacts, labeling the micro-CT 3D image as individual voxels according to mineral and fluid types and labeling the mineral type voxels as belonging to separated and fixed individual grains. The features also include transforming the labeled voxels into an unstructured conformal mesh representation for all grains and applying the unstructured conformal mesh representation to a parametric cohesive contact engine, with the parametric cohesive contact engine executing a parametric cohesive contact model that has an adjustable parameter, a critical separation δ0 conditioned according to consolidation level.

公开(公告)号：US12002159B2

公开(公告)日：2024-06-04

申请号：US17342817

申请日：2021-06-09

Applicant: Dassault Systemes Simulia Corp.

Inventor： Zhuang Sun ,  Rafael Salazar-Tio ,  Andrew Fager ,  Bernd Crouse

IPC: G06T17/20 ,  G06T11/00 ,  G06T15/04

CPC classification number: G06T17/20 ,  G06T11/001 ,  G06T11/006 ,  G06T11/008 ,  G06T15/04

Abstract: Disclosed are computer implemented techniques for conducting a simulation of physical properties of a porous medium. The features include receiving a micro-CT 3D image that captures a representative elemental volume of the porous medium, the porous medium defined as having mineral types and fluid types with individual grains and grain to grain contacts, labeling the micro-CT 3D image as individual voxels according to mineral and fluid types and labeling the mineral type voxels as belonging to separated and fixed individual grains. The features also include transforming the labeled voxels into an unstructured conformal mesh representation for all grains and applying the unstructured conformal mesh representation to a parametric cohesive contact engine, with the parametric cohesive contact engine executing a parametric cohesive contact model that has an adjustable parameter, a critical separation δ0 conditioned according to consolidation level.