Abstract
The problem addressed in this paper is the verification of numerical solutions of nonlinear dispersive wave equations such as Boussinesq-like system of equations. A practical verification tool for numerical results is to compare the numerical solution to an exact solution if available. In this work, we derive some exact solitary wave solutions and several invariants of motion for a wide range of Boussinesq-like equations using Maple software. The exact solitary wave solutions can be used to specify initial data for the incident waves in the Boussinesq numerical model and for the verification of the associated computed solution. The invariants of motions can be used as verification tools for the conservation properties of the numerical model.
Similar content being viewed by others
References
S. Beji and K. Nadaoka, A formal derivation and numerical modeling of the improved Boussinesq equations for varying depth, Coastal Engrg. 23 (1996) 691–704.
M. Chen, Exact traveling-wave solutions to bi-directional wave equations, Internat. J. Theoret. Phys. 37 (1998) 1547–1567.
S. Hamdi, W.H. Enright, W.E. Schiesser and Y. Ouellet, Method of lines solutions of Boussinesq equations, J. Comput. Appl. Math. (2005) accepted.
S. Hamdi, W.H. Enright, W.E. Schiesser and J.J. Gottlieb, Exact solutions of the generalized equal width wave equation, in: Computational Science and Its Applications, eds. V. Kumar et al., ICCSA 2003, Lecture Notes in Computer Science, Vol. 2668 (Springer, Berlin/Heidelberg, 2003) pp. 725–734.
S. Hamdi, J.J. Gottlieb and J.S. Hansen, Numerical solutions of the equal width wave equations using an adaptive method of lines, in: Adaptive Method of Lines, eds. A. Vande Wouwer, P. Saucez and W.E. Schiesser (Chapman & Hall/CRC Press, Boca Raton, FL, 2001) pp. 65–116.
S. Kichenassamy and P.J. Olver, Existence and nonexistence of solitary wave solutions to higher-order model evolution equations, SIAM J. Math. Anal. 23 (1991) 1141–1166.
P.A. Madsen and O.R. Sørenson, A new form of the Boussinesq equations with improved linear dispersion characteristics. Part 2. A slowly varying bathymetry, Coastal Engineering 18 (1992) 183–204.
O. Nwogu, Alternative form of Boussinesq equations for nearshore wave propagation, J. Waterway Port Coastal Ocean Engrg. 119 (1993) 618–638.
H.R. Schember, A new model for three-dimensional nonlinear dispersive long waves, Ph.D. thesis, California Institute of Technology, Pasadena, CA (1982).
M. Walkley and M. Berzins, A finite element method for the one-dimensional extended Boussinesq equations, Internat. J. Numer. Methods Fluids 29 (1999) 143–157.
G. Wei and J.T. Kirby, Time-dependent numerical code for extended Boussinesq equations, J. Waterway Port Coastal Ocean Engrg. 121 (1995) 251–261.
Z.J. Yang, R.A. Dunlap and D.J.W. Geldart, Exact traveling wave solutions to nonlinear diffusion and wave equations, Internat. J. Theoret. Phys. 33 (1994) 2057–2065.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Hamdi, S., Enright, W., Ouellet, Y. et al. Exact Solutions of Extended Boussinesq Equations. Numerical Algorithms 37, 165–175 (2004). https://doi.org/10.1023/B:NUMA.0000049464.45146.88
Issue Date:
DOI: https://doi.org/10.1023/B:NUMA.0000049464.45146.88