activity
20102022
most citedEfficient PML for the wave equation

51 citations · 53 across the 9 of their papers we have counts for

collaborators

9 papers

math.NA2022

--Nonconforming Quadrilateral Finite Element Space with Periodic Boundary Conditions: Part II. Application to the Nonconforming Heterogeneous Multiscale Method

Jaeryun Yim, Dongwoo Sheen, Imbo Sim

A homogenization approach is one of effective strategies to solve multiscale elliptic problems approximately. The finite element heterogeneous multiscale method (FEHMM) which is ba…

math.NA2015

Reduced Basis Method for the Convected Helmholtz Equation

Myoungnyoun Kim, Imbo Sim

We present a reduced basis approach to solve the convected Helmholtz equation with several physical parameters. Physical parameters characterize the aeroacoustic wave propagation i…

math.NA2015

Numerical dispersion analysis of the convected Helmholtz equation

Ohsung Kwon, Imbo Sim

We present the numerical dispersion effects in solving the convected Helmholtz equation by the conforming and nonconforming quadrilateral finite elements. Particularly, we evaluate…

math.AP2015★ 1 cited

Analysis of PML Method for Stochastic Convected Helmholtz Equation

Sang-Hyeon Park, Imbo Sim

We propose and analyze the perfectly matched layer (PML) method for the time-harmonic acoustic waves driven by the white noise source in the presence of the uniform flow. A PML is…

math.NA2015

Immersed finite element method for eigenvalue problems in elasticity

Seungwoo Lee, Do Y. Kwak, Imbo Sim

We consider the approximation of eigenvalue problems for elasticity equations with interface. This kind of problems can be efficiently discretized by using immersed finite element…

math.NA2015

Projected Multilevel Monte Carlo Method for PDE with random input data

Myoungnyoun Kim, Imbo Sim

The order of convergence of the Monte Carlo method is 1/2 which means that we need quadruple samples to decrease the error in half in the numerical simulation. Multilevel Monte Car…

math.NA2014

Immersed Finite Element Method for Eigenvalue Problem

Seungwoo Lee, Do Y. Kwak, Imbo Sim

We consider the approximation of elliptic eigenvalue problem with an immersed interface. The main aim of this paper is to prove the stability and convergence of an immersed finite…

math.PR2014★ 1 cited

Stochastic Convective Wave Equation in Two Space Dimension

Sang-Hyeon Park, Imbo Sim

We study the convective wave equation in two space dimension driven by spatially homogeneous Gaussian noise. The existence of the real-valued solution is proved by providing a nece…

math.NA2010★ 51 cited

Efficient PML for the wave equation

Marcus J. Grote, Imbo Sim

In the last decade, the perfectly matched layer (PML) approach has proved a flexible and accurate method for the simulation of waves in unbounded media. Most PML formulations, howe…