Journal
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
Volume 25, Issue 7, Pages 1574-1589Publisher
EMERALD GROUP PUBLISHING LTD
DOI: 10.1108/HFF-08-2014-0240
Keywords
CDQM; Dirichlet boundary conditions; Runge-kutta; Two-dimensional hyperbolic equations; Fourth-order method; Neumann boundary conditions; Differential quadrature method
Funding
- Indian Institute of Technology Roorkee under Faculty Initiation Grant [IITR/SRIC/940/FIG]
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Purpose - The purpose of this paper is to present the computational modeling of second-order two-dimensional nonlinear hyperbolic equations by using cosine expansion-based differential quadrature method (CDQM). Design/methodology/approach - The CDQM reduced the equations into a system of second-order differential equations. The obtained system is solved by RK4 method by converting into a system of first ordinary differential equations. Findings - The computed numerical results are compared with the results presented by other workers (Mohanty et al., 1996; Mohanty, 2004) and it is found that the present numerical technique gives better results than the others. Second, the proposed algorithm gives good accuracy by using very less grid point and less computation cost as comparison to other numerical methods such as finite difference methods, finite elements methods, etc. Originality/value - The author extends CDQM proposed in (Korkmaz and Dag, 2009b) for twodimensional nonlinear hyperbolic partial differential equations. This work is new for two-dimensional nonlinear hyperbolic partial differential equations.
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