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fdtd

semba-fdtd is a finite-differences in time domain solver with special focus on EMC problems. semba-fdtd can be used as a standalone solver or integrated within a FreeCAD workbench (www.elemwave.com).

https://github.com/opensemba/fdtd

Science Score: 39.0%

This score indicates how likely this project is to be science-related based on various indicators:

  • ○
    CITATION.cff file
  • ✓
    codemeta.json file
    Found codemeta.json file
  • ✓
    .zenodo.json file
    Found .zenodo.json file
  • ✓
    DOI references
    Found 4 DOI reference(s) in README
  • ○
    Academic publication links
  • ○
    Academic email domains
  • ○
    Institutional organization owner
  • ○
    JOSS paper metadata
  • ○
    Scientific vocabulary similarity
    Low similarity (10.2%) to scientific vocabulary

Keywords

cem computational-electromagnetics electrodynamics electromagnetic-compatibility emc finite-differences time-domain
Last synced: 6 months ago · JSON representation

Repository

semba-fdtd is a finite-differences in time domain solver with special focus on EMC problems. semba-fdtd can be used as a standalone solver or integrated within a FreeCAD workbench (www.elemwave.com).

Basic Info
  • Host: GitHub
  • Owner: OpenSEMBA
  • License: mit
  • Language: Fortran
  • Default Branch: main
  • Homepage:
  • Size: 230 MB
Statistics
  • Stars: 21
  • Watchers: 2
  • Forks: 6
  • Open Issues: 24
  • Releases: 62
Topics
cem computational-electromagnetics electrodynamics electromagnetic-compatibility emc finite-differences time-domain
Created almost 3 years ago · Last pushed 7 months ago
Metadata Files
Readme License Citation

README.md

License: MIT

ubuntu windows

semba-fdtd

In a nutshell, semba-fdtd capabilities are

  • Cluster working capabilites through MPI.
  • Multiple threads per processor through OpenMP.
  • Closed/symmetric problems by means of PEC and PMC conditions.
  • Open problems by means of PML boundary conditions (CPML formulation) or by Mur ABCs.
  • Non-uniformly meshed domains by means of rectilinear (or graded) meshes.
  • Bulk lossless and lossy dielectrics.
  • Materials with frequency dependent relative permittivity and/or permeability, with an arbitrary number of complex-conjugate pole-residue pairs.
  • Bulk anisotropic lossless and lossy dielectrics.
  • Equivalent models of multilayered skin-depth materials.
  • Branched multiwires.
  • Multiconductor transmission lines networks embedded within 3D FDTD solvers.
  • Coupling with SPICE solvers (ngspice).
  • Junctions of wires of different radii.
  1. Junctions of multiwires.
  2. Wire bundles.
  3. Loaded with p.u.l resistance and inductance wires.
  4. Grounding through lumped elements.
  • Plane-wave illumination with arbitrary time variation.
  • Multiple planewaves illumination for reverberation chamber modeling.
  • Hertzian dipole sources.
  • Equivalent Huygens surfaces.
  • Low frequency thin composites and lossy surfaces.
  • Thin slots.
  • Time, frequency and transfer function probes.
  • Near-to-far field transformation.

Usage

Compilation and debugging instructions can be found here.

A short tutorial on usage can be found here.

The main binary is semba-fdtd which uses the SMBJSON format as input files. It can be run with

shell semba-fdtd -i CASE_NAME.fdtd.json

Tests must be run from the root folder. python wrapper test assumes that semba-fdtd has been compiled successfully and is located in folder build/bin/. For intel compilation it also assumes that the intel runtime libraries are accessible.

License

This code is licensed under the terms of the MIT License. All rights reserved by the University of Granada (Spain)

Funding

  • Spanish Ministry of Science and Innovation (MICIN/AEI) (Grant Number: PID2022-137495OB-C31)
  • European Union, HECATE project. (HE-HORIZON-JU-Clean-Aviation-2022-01)
  • iSense Project. In-Situ Monitoring of Electromagnetic Interference. (HE-HORIZON-MSCA-2023-DN-01)

Owner

  • Name: OpenSEMBA
  • Login: OpenSEMBA
  • Kind: organization

GitHub Events

Total
  • Create event: 81
  • Issues event: 45
  • Release event: 45
  • Watch event: 21
  • Delete event: 10
  • Member event: 2
  • Issue comment event: 44
  • Push event: 559
  • Pull request review comment event: 32
  • Pull request event: 190
  • Pull request review event: 100
  • Fork event: 7
Last Year
  • Create event: 81
  • Issues event: 45
  • Release event: 45
  • Watch event: 21
  • Delete event: 10
  • Member event: 2
  • Issue comment event: 44
  • Push event: 559
  • Pull request review comment event: 32
  • Pull request event: 190
  • Pull request review event: 100
  • Fork event: 7

Issues and Pull Requests

Last synced: 6 months ago

All Time
  • Total issues: 25
  • Total pull requests: 73
  • Average time to close issues: about 1 month
  • Average time to close pull requests: 5 days
  • Total issue authors: 6
  • Total pull request authors: 5
  • Average comments per issue: 0.56
  • Average comments per pull request: 0.04
  • Merged pull requests: 49
  • Bot issues: 0
  • Bot pull requests: 0
Past Year
  • Issues: 25
  • Pull requests: 73
  • Average time to close issues: about 1 month
  • Average time to close pull requests: 5 days
  • Issue authors: 6
  • Pull request authors: 5
  • Average comments per issue: 0.56
  • Average comments per pull request: 0.04
  • Merged pull requests: 49
  • Bot issues: 0
  • Bot pull requests: 0
View more stats
Top Authors
Issue Authors
  • lmdiazangulo (27)
  • Alberto-o (2)
  • 694856790 (2)
  • luzpaz (1)
  • salvaugres (1)
  • carlosgonzalez-elemwave (1)
  • ashybabashyba (1)
  • AdtPereira (1)
Pull Request Authors
  • lmdiazangulo (86)
  • Alberto-o (38)
  • salvaugres (11)
  • adrianarce-elemwave (7)
  • ashybabashyba (3)
  • AlejandroMunozManterola (3)
  • jajimesa (1)
Top Labels
Issue Labels
bug (4) enhancement (3) question (2) invalid (1) materials (1) probes (1)
Pull Request Labels
enhancement (1)

Dependencies

.github/workflows/automatic-release-ubuntu-gnu.yml actions
  • actions/checkout v4 composite
  • marvinpinto/action-automatic-releases latest composite
.github/workflows/automatic-release-windows-intelLLVM.yml actions
  • actions/checkout v4 composite
  • fortran-lang/setup-fortran v1 composite
  • marvinpinto/action-automatic-releases latest composite
  • mpi4py/setup-mpi v1 composite
  • seanmiddleditch/gha-setup-ninja master composite
.github/workflows/ubuntu.yml actions
  • actions/checkout v4 composite
  • fortran-lang/setup-fortran v1 composite
  • mpi4py/setup-mpi v1 composite
.github/workflows/windows.yml actions
  • actions/checkout v4 composite
  • fortran-lang/setup-fortran v1 composite
  • mpi4py/setup-mpi v1 composite
  • seanmiddleditch/gha-setup-ninja master composite
.devcontainer/Dockerfile docker
  • intel/oneapi-hpckit latest build
requirements.txt pypi
  • h5py *
  • matplotlib *
  • numpy *
  • pandas *
  • pytest *
  • pyvista *
  • scikit-rf *
  • scipy *
  • vtk *