Search Results for "wave equation"

JUDI is a framework for large-scale seismic modeling and inversion and is designed to enable rapid translations of algorithms to fast and efficient code that scales to industry-size 3D problems. The focus of the package lies on seismic modeling as well as PDE-constrained optimization such as full-waveform inversion (FWI) and imaging (LS-RTM). Wave equations in JUDI are solved with Devito, a Python domain-specific language for automated finite-difference (FD) computations. JUDI's modeling operators can also be used as layers in (convolutional) neural networks to implement physics-augmented deep learning algorithms thanks to its implementation of ChainRules's rrule for the linear operators representing the discre wave equation.

Basic features: 1. Generate KPOINTS, POTCAR and INCAR for a given POSCAR file; 2. Elastic-constants using stress-strain or energy-strain methods; 3. Equation-of-state fitting; 4. Suggested k-paths for a given crystal structure; 5. Optical adsorption coefficient; 6. Band structure unfolding; 7. Fermi surface; 8. Density-of-states and band-structure; 9. Charge/spin density, Charge density difference; 10. Vacuum level and work function; 11. Wave-function analysis; 12. Molecular-dynamics analysis; 13. ...

...other funs: Euclidians, showFactors, changeBaseArr, caesar, rsa, inverseMod, IntToModTups (large number math for PC's) crfindnSolnAfterxInEqm (solve saw wave LL,RL,LR,... intersects) congruence, plots, y-shifted triangular wave solve, testing (for historic reasons files are also in https://sourceforge.net/projects/periodictablemm/)

A program to solve dispersion equation in water waves mechanics using iterated and graphical methods.

This code simulates the 1D coupled transport in nanoscale materials. Both the electrical and thermal transport are simulated using a Non-equilibrium Green's function (NEGF) to solve the wave equation. The models handle the electron-phonon, electron-electron, and phonon-phonon interactions. The electrical model is a 1D effective mass description and the thermal model is a 1D atomistic description. This code was specifically designed to investigate nanoscale thermoelectrics. More specifically, highly confined superlattice structures, where the periodicity is on the order of 5nm. ...

Library to evaluate periodic Green's functions or Green's functions for wave guides for the Helmholtz equation using Ewald's method.

A Fast MAC based 3D Free surface fuid solver. Capable also of simulating viscoelastic fluids.Includes also wave equation solver for simulating shallow water phenomena.