✦ LIBER ✦

Classical and enriched finite element formulations for Bloch-periodic boundary conditions

✍ Scribed by N. Sukumar; J. E. Pask

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 201 KB
Volume: 77
Category: Article
ISSN: 0029-5981
DOI: 10.1002/nme.2457

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Finite element formulations for exterior

Finite element formulations for exterior problems: application to hybrid methods, non-reflecting boundary conditions, and infinite elements

✍ Isaac Harari; Paul E. Barbone; Joshua M. Montgomery 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 346 KB 👁 2 views

We develop formulations for ÿnite element computation of exterior acoustics problems. A prominent feature of the formulations is the lack of integration over the unbounded domain, simplifying the task of discretization and potentially leading to numerous additional beneÿts. These formulations provid

Finite element formulation of exact non-

Finite element formulation of exact non-reflecting boundary conditions for the time-dependent wave equation

✍ Lonny L. Thompson; Runnong Huan 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 200 KB 👁 2 views

A modiÿed version of an exact Non-re ecting Boundary Condition (NRBC) ÿrst derived by Grote and Keller is implemented in a ÿnite element formulation for the scalar wave equation. The NRBC annihilate the ÿrst N wave harmonics on a spherical truncation boundary, and may be viewed as an extension of th

BOUNDARY CONDITIONS FOR FINITE ELEMENT S

BOUNDARY CONDITIONS FOR FINITE ELEMENT SIMULATIONS OF CONVECTIVE FLOWS WITH ARTIFICIAL BOUNDARIES

✍ J. C. HEINRICH; S. R. IDELSOHN; E. OÑATE; C. A. VIONNET 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 962 KB

We examine the use of natural boundary conditions and conditions of the Sommerfeld type for finite element simulations of convective transport in viscous incompressible flows. We show that natural boundary conditions are superior in the sense that they always provide a correct boundary condition, as

BOUNDARY CONDITIONS IN SHALLOW WATER MOD

BOUNDARY CONDITIONS IN SHALLOW WATER MODELS—AN ALTERNATIVE IMPLEMENTATION FOR FINITE ELEMENT CODES

✍ R. L. KOLAR; W. G. GRAY; J. J. WESTERINK 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 865 KB

Finite element solution of the shallow water wave equations has found increasing use by researchers and practitioners in the modelling of oceans and coastal areas. Wave equation models, most of which use equal-order C? interpolants for both the velocity and the surface elevation, do not introduce sp

Estimation of boundary conditions for gr

Estimation of boundary conditions for ground temperature control using Kalman filter and finite element method

✍ Keiichi Suma; Mutsuto Kawahara 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 359 KB 👁 2 views

This paper presents a numerical method in which the Kalman filter and the extended Kalman filter techniques are applied to the ground temperature control analysis with the finite element method. The purpose of this research is to identify the unknown parameters that are involved in the physical mode

A coding error elimination procedure for

A coding error elimination procedure for verifying finite element programs with forced and natural boundary conditions

✍ David A. Blank; P. John Loui 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 137 KB

The general procedure developed by Shih for eliminating computer coding errors has been both simpliÿed for ÿnite element applications and extended for use in the veriÿcation of the coding of forced and natural boundary conditions. To accomplish these two objectives simultaneously, use is made of vol