Sökning: id:"swepub:oai:DiVA.org:kth-73240" >
On Energy Preservin...
On Energy Preserving Consistent Boundary Conditions for the Yee Scheme in 2D
-
- Engquist, Björn (författare)
- Univ Texas Austin
-
- Häggblad, Jon, 1981- (författare)
- KTH,Numerisk analys, NA
-
- Runborg, Olof (författare)
- KTH,Numerisk analys, NA,Swedish e-Science Research Center (SeRC
-
(creator_code:org_t)
- 2012-03-01
- 2012
- Engelska.
-
Ingår i: BIT Numerical Mathematics. - : Springer. - 0006-3835 .- 1572-9125. ; 52:3, s. 615-637
- Relaterad länk:
-
http://www.springerl...
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- The Yee scheme is one of the most popular methods for electromagnetic wave propagation. A main advantage is the structured staggered grid, making it simple and efficient on modern computer architectures. A downside to this is the difficulty in approximating oblique boundaries, having to resort to staircase approximations. In this paper we present a method to improve the boundary treatment in two dimensions by, starting from a staircase approximation, modifying the coefficients of the update stencil so that we can obtain a consistent approximation while preserving the energy conservation, structure and the optimal CFL-condition of the original Yee scheme. We prove this in L_2 and verify it by numerical experiments.
Ämnesord
- NATURVETENSKAP -- Matematik -- Beräkningsmatematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Computational Mathematics (hsv//eng)
Nyckelord
- Yee scheme
- FDTD
- Computational electromagnetics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas