scholarly journals Implementation of initial and boundary conditions in the finite-difference time-domain numerical solution of elastic wave fields in anisotropic solids

2006 ◽  
Vol 27 (1) ◽  
pp. 36-42 ◽  
Author(s):  
Masahiro Sato
Keyword(s):  
Finite Difference ◽  
Boundary Conditions ◽  
Elastic Wave ◽  
Numerical Solution ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Wave Fields ◽  
Initial And Boundary Conditions ◽  
Difference Time

scholarly journals Numerical simulation of 2D electrodynamic problems with unstructured triangular meshes

2019 ◽  
Vol 43 (3) ◽  
pp. 385-390
Author(s):  
D.A. Fadeev
Keyword(s):  
Numerical Simulation ◽  
Cauchy Problem ◽  
Finite Difference ◽  
Numerical Solution ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Regular Triangulation ◽  
Graphical Processing Units ◽  
Graphical Processing ◽  
Difference Time

We present a generalization of standard leap-frog plus Yee mesh approach for Cauchy problem in electrodynamics simulations on unstructured triangulated mesh. The presented approach still inherits from finite-difference time-domain and do not use techniques developed in finite-volume time-domain approach. In the paper the whole flow from mesh creation to actual simulation is presented. The proposed computation flow is parallel ready and can be implemented for distributed systems (computation servers, graphical processing units, etc.). We studied the influence of non-regular triangulation on stability and dispersion properties of numerical solution.

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