[HTML][HTML] Sound and soliton wave propagation in homogeneous and heterogeneous mediums with the new two-derivative implicit–explicit Runge–Kutta–Nyström …

MK Rajpoot, VS Yadav, J Jaglan, A Singh - AIP Advances, 2022 - pubs.aip.org
This paper derives a new family of implicit–explicit time-marching methods for PDEs with the
second-order derivative in time. The present implicit method is based on the two-derivative …

[PDF][PDF] Exploring Acoustic and Sound Wave Propagation Simulations: A Novel Time Advancement Method for Homogeneous and Heterogeneous Media

S Kumar, B Ramcharan, VS Yadav, A Singh… - Adv. Appl. Math …, 2024 - doc.global-sci.org
In this article, we have developed a new time-marching method to simulate sound and
soliton propagation in homogeneous and heterogeneous media. The proposed time …

Acoustic and soliton propagation using fully-discrete energy preserving partially implicit scheme in homogeneous and heterogeneous mediums

J Jaglan, V Maurya, A Singh, VS Yadav… - … & Mathematics with …, 2024 - Elsevier
This study presents an energy preserving partially implicit scheme for the simulation of wave
propagation in homogeneous and heterogeneous mediums. Despite its implicit nature, the …

Time‐domain hybrid formulations for wave simulations in three‐dimensional PML‐truncated heterogeneous media

A Fathi, B Poursartip… - International Journal for …, 2015 - Wiley Online Library
We are concerned with the numerical simulation of wave motion in arbitrarily
heterogeneous, elastic, perfectly‐matched‐layer‐(PML)‐truncated media. We extend in …

Stability of high order finite difference and local discontinuous Galerkin schemes with explicit-implicit-null time-marching for high order dissipative and dispersive …

M Tan, J Cheng, CW Shu - Journal of Computational Physics, 2022 - Elsevier
Time discretization is an important issue for time-dependent partial differential equations
(PDEs). For the k-th (k≥ 2) order PDEs, the explicit time-marching method may suffer from a …

A novel time-marching formulation for wave propagation analysis: the adaptive hybrid explicit method

D Soares Jr - Computer Methods in Applied Mechanics and …, 2020 - Elsevier
This paper proposes an adaptive hybrid approach to explicitly analyse hyperbolic models.
The new methodology considers the combination of simple and enhanced explicit time …

A staggered time integrator for the linear acoustic wave equation using the Jacobi-Anger expansion

J Lee, Y Park, H Park, C Shin, W Chung - Journal of Computational Physics, 2020 - Elsevier
In this study, we introduce a staggered time integrator with the Fourier pseudospectral
method to solve the first-order linear wave equation, which is accelerated by using the …

An Implicit Generalized Finite-Difference Time-Domain Scheme for Solving Nonlinear Schrödinger Equations

FI Moxley III, DT Chuss, W Dai - Mathematics of Continuous and …, 2014 - books.google.com
In this chapter, we develop the linearized generalized FDTD implicit scheme for solving time-
dependent nonlinear Schrödinger equations in 1D. Using the discrete energy method, the G …

A nearly analytic symplectically partitioned Runge–Kutta method for 2-D seismic wave equations

X Ma, D Yang, F Liu - Geophysical Journal International, 2011 - academic.oup.com
In this paper, we develop a new nearly analytic symplectically partitioned Runge–Kutta
(NSPRK) method for numerically solving elastic wave equations. In this method, we first …

[图书][B] High-order/spectral methods for transient wave equations

T Xiao - 2004 - search.proquest.com
In this thesis, several novel numerical methods are developed to solve two important
systems, Maxwell's equations and the acoustic equations. These methods belong to two …