Results 11 to 20 of about 191,756 (165)

An improved wave equation of fractured-porous media for predicting reservoir permeability

Frontiers in Earth Science, 2023
The wave characteristics of fractured-porous media can be utilized for permeability identification; however, further research is necessary to enhance the accuracy of this identification. A novel wave equation for fractured-porous media is formulated, and
Wanjin Zhao, Weitao Sun, Jianhu Gao, Run He   +3 more
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One-Way Wave Operator

Acoustics, 2022
The second-order partial differential wave Equation (Cauchy’s first equation of motion), derived from Newton’s force equilibrium, describes a standing wave field consisting of two waves propagating in opposite directions, and is, therefore, a “two-way ...
Hans-Joachim Raida
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On the Fractional Wave Equation

Mathematics, 2020
In this paper we study the time-fractional wave equation of order 1
Francesco Iafrate, Enzo Orsingher
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Approximate Solutions of the Damped Wave Equation and Dissipative Wave Equation in Fractal Strings

Fractal and Fractional, 2019
In this paper, we apply the local fractional Laplace variational iteration method (LFLVIM) and the local fractional Laplace decomposition method (LFLDM) to obtain approximate solutions for solving the damped wave equation and dissipative wave equation ...
Dumitru Baleanu, Hassan Kamil Jassim
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A vector super Newell long-wave-short-wave equation and infinite conservation laws

Partial Differential Equations in Applied Mathematics, 2022
Based on the zero-curvature equation and Lenard recursion equations, we propose a vector super long-wave-short-wave hierarchy associated with an (n+2)×(n+2)matrix spectral problem.
Kedong Wang, Mingming Chen, Xianguo Geng, Ruomeng Li   +3 more
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One-Way Wave Equation Derived from Impedance Theorem

Acoustics, 2020
The wave equations for longitudinal and transverse waves being used in seismic calculations are based on the classical force/moment balance. Mathematically, these equations are 2nd order partial differential equations (PDE) and contain two solutions with
Oskar Bschorr, Hans-Joachim Raida
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Numerical study on the generation and evolution of the super-rogue waves

Journal of Ocean Engineering and Science, 2016
The super-rogue wave solutions of the nonlinear Schrödinger equation (NLS) are numerically studied based on the weakly nonlinear hydrodynamic equation. The super-rogue wave solutions up to the 5th order, also known as the so-called super-rogue waves, are
Jianmin Yang, Wenyue Lu
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The Wave Equation for a Moving Source and a Moving Receiver

Mathematics
The ordinary 3D wave equation for nondissipative, homogeneous, isotropic media admits solutions where the point sources are permitted to move, but as shown in this paper, it does not admit solutions where the receiver is allowed to move. To overcome this
Hrvoje Dodig
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Exact Solutions for a New Nonlinear KdV-Like Wave Equation Using Simplest Equation Method and Its Variants

Journal of Applied Mathematics, 2014
The simplest equation method presents wide applicability to the handling of nonlinear wave equations. In this paper, we focus on the exact solution of a new nonlinear KdV-like wave equation by means of the simplest equation method, the modified simplest ...
Yinghui He, Yun-Mei Zhao, Yao Long
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Global solutions of wave equations with multiple nonlinear source terms under acoustic boundary conditions

Boundary Value Problems, 2021
Under the acoustic boundary conditions, the initial boundary value problem of a wave equation with multiple nonlinear source terms is considered. This paper gives the energy functional of regular solutions for the wave equation and proves the decreasing ...
Shoubo Jin, Jian Li
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