Stationary-propagating Solutions of the Boussinesq Equation in 2D Numerical and Asymptotic Investigation of Localized Solutions using Finite-Difference and Perturbation Method
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Stationary-propagating Solutions of the Boussinesq Equation in 2D Numerical and Asymptotic Investigation of Localized Solutions using Finite-Difference and Perturbation Method

Stationary-propagating Solutions of the Boussinesq Equation in 2D Numerical and Asymptotic Investigation of Localized Solutions using Finite-Difference and Perturbation Method


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About the Book

The Boussinesq equation for the surface waves reduces to a 4th-order elliptic equation for steady moving waves. This is investigated for bifurcation in 2D by devising a finite-difference scheme and an iterative algorithm. We prove that the truncation error of the scheme is second-order in spac. Next, we develop a perturbation series with respect to the small parameter (square of the phase speed of the wave). Within 2nd order of the small parameter, we derive a hierarchy of 1D equations that are 4th-order in the radial variable and solve the ODEs. We create special approximations to handle the so-called "behavioral" conditions at the point of singularity. Comparison of the results obtained with the two different techniques is in excellent agreement and validated. We discover that the shape of the moving soliton decays as inverse-square of the radial distance from the center of the base, while the profile of the standing soliton decays exponentially. This means that the asymptotic behavior of the solution is not robust, a novel result. Our results are of importance both for the mathematical theory of Boussinesq solitons in multi-dimension, and for their physical applications.


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Product Details
  • ISBN-13: 9783639108187
  • Publisher: VDM Verlag
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 172 gr
  • ISBN-10: 3639108183
  • Publisher Date: 06 Jan 2009
  • Height: 229 mm
  • No of Pages: 84
  • Spine Width: 4 mm
  • Width: 152 mm


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Stationary-propagating Solutions of the Boussinesq Equation in 2D Numerical and Asymptotic Investigation of Localized Solutions using Finite-Difference and Perturbation Method
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Stationary-propagating Solutions of the Boussinesq Equation in 2D Numerical and Asymptotic Investigation of Localized Solutions using Finite-Difference and Perturbation Method
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