✦ LIBER ✦

A new absorbing boundary condition for FDTD

✍ Scribed by N. Sachdeva; N. Balakrishnan; S. M. Rao

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 149 KB
Volume: 25
Category: Article
ISSN: 0895-2477
DOI: 10.1002/(sici)1098-2760(20000420)25:2<86::aid-mop2>3.0.co;2-4

No coin nor oath required. For personal study only.

✦ Synopsis

In this work, we present a new absorbing boundary condi-(

) tion for the finite-difference time-domain FDTD method. This boundary condition is based on the use of chiral absorbers, which are well suited for this application. Further, we present se¨eral numerical examples to illustrate the efficacy of this approach.

📜 SIMILAR VOLUMES

Stable FDTD solutions with higher-order

Stable FDTD solutions with higher-order absorbing boundary conditions

✍ Omar M. Ramahi 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 104 KB

## One-way wa¨e equation type boundary operators can ( ) produce instabilities in finite-difference᎐time-domain FDTD simulations. Such instabilities become acute when the order of the operator is three or higher. Pre¨ious efforts to stabilize these operators sacrificed either efficiency or accurac

Complex coordinate stretching as a gener

Complex coordinate stretching as a generalized absorbing boundary condition

✍ W. C. Chew; J. M. Jin; E. Michielssen 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 277 KB 👁 1 views

Figure 4 Comparison of normalized power density calculated using w x Ž . the recursive T-matrix algorithm with 11 a Tessellated geometry Ž . showing the scattering for 45Њ slanted metallic rectangle b Polar Ž . plot showing the normalized power density vs. for geometry of a

An absorbing boundary condition for the

An absorbing boundary condition for the path-integral time-domain method

✍ Jeffrey A. Miller; Robert D. Nevels 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 379 KB 👁 2 views

Discrete non-local absorbing boundary co

Discrete non-local absorbing boundary condition for exterior problems governed by Helmholtz equation

✍ Ruperto P. Bonet; Norberto Nigro; Mario A. Storti; Sergio R. Idelsohn 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 256 KB 👁 1 views

The finite element method is employed to approximate the solutions of the Helmholtz equation for water wave radiation and scattering in an unbounded domain. A discrete, non-local and non-reflecting boundary condition is specified at an artificial external boundary by the DNL method, yielding an equi

Absorbing boundary technique for open ch

Absorbing boundary technique for open channel flows

✍ Scott A. Yost; Prasada Rao; Russell M. Brown 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 162 KB 👁 2 views

An absorbing boundary condition is formulated and applied to the one-dimensional open channel flow equations in conjunction with an explicit MacCormack scheme. The physical flow domain has been truncated by introducing an artificial pseudo-boundary. By using an appropriate boundary condition on a tr

Computing ship wave resistance from wave

Computing ship wave resistance from wave amplitude with a non-local absorbing boundary condition

✍ Storti, M. ;D'Elía, J. ;Idelsohn, S. 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 260 KB 👁 1 views

A method for computing ship wave resistance from a momentum ¯ux balance is presented. It is based on computing the momentum ¯ux carried by the gravity waves that exit the computational domain through the outlet plane. It can be shown that this method ensures a non-negative wave-resistance, in contra