WorldCat Identities

Lee, Seung-Cheol

Overview
Works: 6 works in 12 publications in 3 languages and 20 library holdings
Genres: History  Exhibition catalogs  Conference papers and proceedings 
Roles: Author, Redactor, Editor
Classifications: HD4420.8, 686.21
Publication Timeline
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Most widely held works by Seung-Cheol Lee
Privatization & deregulation : the international experience & Korea's approach( Book )

1 edition published in 1994 in English and held by 2 WorldCat member libraries worldwide

Linear and non-linear modeling of viscous geo-materials with DDA by Seung-Cheol Lee( )

1 edition published in 2002 in English and held by 2 WorldCat member libraries worldwide

Enhanced finite elements using hierarchical higher order bases and inexact helmholtz decomposition for wave guiding structures by Seung-Cheol Lee( )

2 editions published in 2003 in English and held by 2 WorldCat member libraries worldwide

Abstract: In this thesis, the finite element method (FEM) is extended into hierarchical higher order bases and the inexact Helmholtz decomposition. With the help of hierarchical basis functions, the approach can well adopt into p version adaptive process. On the other hand, the inexact Helmholtz decomposition enhances the stability of the finite element procedure when the operating frequency is low, or the element size is very small compared to the wavelength. This approach can also enhance the h version adaptive mesh refinement process since the process may cause very small elements near a singular region. To accomplish the inexact Helmholtz decomposition for the edge elements, the lowest order curl conforming basis functions, the tree-cotree splitting is utilized, and the general procedure is presented. As a result, a combination of hierarchical higher order basis functions with the inexact Helmholtz decomposition can improve the efficiency and the stability of the hp adaptive mesh refinement process. The accuracy and the stability of the improved FEM are also discussed through numerical examples
U li han či : u li ka čōñ mal al a ya hal by Seung-Cheol Lee( Book )

1 edition published in 2004 in Korean and held by 1 WorldCat member library worldwide

A finite element boundary element method for infinite periodic structures on non-periodic meshes using an interior penalty formulation by Seung-Cheol Lee( )

1 edition published in 2012 in English and held by 1 WorldCat member library worldwide

Abstract: This dissertation presents a hybrid finite element boundary element (FEBE) method for infinite periodic structures. Infinite periodic structures have been efficiently analyzed by solving for a single unit cell utilizing Floquet's theorem. However, most of the previous works require periodic meshes to properly impose the boundary conditions on the outer surfaces of the unit cell. To alleviate this restriction, interior penalty method is adopted and implemented in this work. The method is applied only on the outer surface by assuming that the interior mesh is conformal. For the boundaries that are exposed to infinite free space, boundary element method with periodic Green's function is used. Also, a proper treatment for the boundary element part is addressed to account for non-conformity at the boundary of the boundary elements. Another ingredient of this work is the use of the efficient boundary element computation, accelerated by the Ewald transformation for the calculation of the periodic Green's function. Furthermore, a h-version of adaptive mesh refinement scheme is attempted for reliability and efficiency of the computation. A residual based a posteriori error estimator is proposed to identify the elements that require further refinement. Finally, the presented method is validated through some real life examples which are discretized without the constraint of a periodic mesh
 
Audience Level
0
Audience Level
1
  Kids General Special  
Audience level: 0.89 (from 0.74 for Enhanced f ... to 0.99 for U li han c ...)

Alternative Names
Lee Seung-Cheol 1964-....

Li Seung-Chul 1964-....

Yi Sung-Chol 1964-....

이 승철 1964-...

Languages