Systems and methods for multi-material mesh generation from fill-fraction voxel model data are discussed. Voxel representations of model data are used to generate robust and accurate multi-material meshes. More particularly, a mesh generation pipeline in a virtual fabrication environment is described that robustly generates high-quality triangle surface and tetrahedral volume meshes from multi-material fill-fraction voxel data. Multi-material topology is accurately captured while preserving characteristic feature edges of the model.

The disclosure relates to the field of underground salt cavern energy storage, and discloses a coupling numerical simulation method for site selection of an underground salt cavern hydrogen storage, which specifically comprises the following. Geological data of an area where the salt cavern hydrogen storage is to be established is obtained. A three-dimensional model is established and grid meshing is performed. An initial coupling field is established and balanced based on the geological model, and then excavation simulation of the salt cavern hydrogen storage is performed. A geological model after excavation and related parameter values thereof are imported into TOUGH2MP software, a stress model in FLAC3D software is coupled with hydraulic and thermal models in the TOUGH2MP software to simulate a stress, hydraulic, and thermal coupling behavior process of rock layers around the salt cavern hydrogen storage in the area, and a coupled simulation result is obtained.

This invention presents a projection embedded discrete fracture model integrating a TPFA and MFD hybrid approach, creating a pEDFM framework for various anisotropic two-phase flow situations. It specifies the distribution of extra pressure freedoms on matrix grids for MFD implementation, maintains f-f connections in TPFA through a standard pEDFM workflow, and introduces a low-conductivity fracture treatment for MFD. It also outlines the derivation of numerical flux calculation formulas for effective m-m and m-f connections. The mixed TPFA-MFD design applies to numerical flux estimation across both K-orthogonal and non-K-orthogonal grids, enhancing computational efficiency and facilitating the spatial discretization of continuity equations for matrix and fracture grids under anisotropic permeability conditions. A global equation system is formulated based on the continuity of effective connections, with time discretization via the implicit backward Euler method and pressure and water saturation distributions determined by a Newton-Raphson based nonlinear solver.

Disclosed are a power supply network design method and apparatus, and a storage medium. The method includes: identifying a coordinate of each memory macro cell in a power domain to be processed; determining a coordinate of a first area, a coordinate of each second area, and a coordinate of each third area according to the coordinate of the each memory macro cell; determining a first metal wire arrangement parameter in the first area according to a design requirement, determining a second metal wire arrangement parameter in each second area according to the coordinate of each second area, determining a third metal wire arrangement parameter in each third area according to the coordinate of each third area; performing a power supply network arrangement on the first area, each second area, and each third area according to the coordinate of the first area, the coordinate of each second area, the coordinate of each third area, and the corresponding first metal wire arrangement parameter, second metal wire arrangement parameter, and third metal wire arrangement parameter.

Provided is a scattering measurement analysis method including obtaining a theoretical scattering intensity from a structural model that contains a lot of scatterers, wherein the obtaining of a theoretical scattering intensity includes obtaining a contribution to the theoretical scattering intensity of a pair of a scatterer m and a scatterer n existing at a distance r from the scatterer m among a plurality of scatterers by at least one of calculations in accordance with the distance r, the calculations including a first calculation of calculating contributions of the scatterer m and the scatterer n from respective scattering factors f.sub.m(q) and f.sub.n*(q) and a center-to-center distance r.sub.mn between the scatterer m and the scatterer n, and a second calculation of substituting the scattering factor f.sub.n*(q) of the scatterer n by a first representative value and substituting a probability density function of the number of scatterers existing at the distance r by a constant value.

A method of evaluating a stress applied to components of a switchgear cabinet for sustaining an arc-flash with an arc-flash event simulation and energy transmission thereof is presented with steps comprising providing a location of the arc-flash in an internal volume of the switchgear cabinet, simulating the arc-flash as a local ambient boundary condition at the location of the arc flash with an input energy, diffusing the input energy in an air domain inside the switchgear cabinet, applying the input energy as a thermal history to specific arc-flash elements, multiplying the thermal history by specific heat to calculate energy units at the arc-flash, identifying a desired thermal energy magnitude and history of deposition and calibrating the desired thermal history to substantially match an estimated mechanical power generated by the arc-flash.

Disclosed are techniques for scalar solvers in flow simulations that include simulating using a scalar lattice velocity set in a computing system, movement of scalar particles representing a scalar quantity in a volume of fluid, with the scalar particles carried by flow particles of the volume of fluid, and with the movement of the scalar particles causing collisions among the scalar particles; and evaluating, a non-equilibrium post-collide scalar distribution function of a specified order that is representative of the scalar collision.

A mechanical computer-aided design (MCAD) model representing an object is received. The MCAD model contains a surface with a face defined therein. Deformation of the face is obtained in a simulation based on the MCAD model. The surface is defined by Non-Uniform Rational Basis Spline patches and mapped to a two-dimensional (2-D) parametric grid. The 2-D grid contains a first group of grid points representing the face and a second group of grid points representing outside of the face. The deformation of the face is applied to the first group of grid points. The deformation is extrapolated to the second group of grid points. An updated MCAD model representing a deformed object is generated using the 2-D grid associated with the applied deformation and the extrapolated deformation.

The invention concerns a method for determining a mechanical stress of a runner (40), of a hydraulic machine (10), wherein the runner is arranged to rotate around a rotation axis, wherein the hydraulic machine comprises a hydraulic channel delimited by hydraulic surfaces of the runner, the hydraulic surfaces being the surfaces against which a stream of water exerts the forces when the runner is driven in rotation by said stream of water, wherein the runner further comprises a sensor (G) on protected areas positioned away from the hydraulic channel, the method comprises the steps of: a) collecting a physical quantity measured by the sensor (G), b) determining a mechanical stress on a specific location of the hydraulic surface, via a transfer function that correlates the physical quantity measured in step a) and said mechanical stress on the specific location.

An autonomous vehicle simulation system for analyzing motion planners is disclosed. A particular embodiment includes: receiving map data corresponding to a real world driving environment; obtaining perception data and configuration data including pre-defined parameters and executables defining a specific driving behavior for each of a plurality of simulated dynamic vehicles; generating simulated perception data for each of the plurality of simulated dynamic vehicles based on the map data, the perception data, and the configuration data; receiving vehicle control messages from an autonomous vehicle control system; and simulating the operation and behavior of a real world autonomous vehicle based on the vehicle control messages received from the autonomous vehicle control system.