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- W2915024310 abstract "We propose a two-level implicit high order compact scheme for the one-dimensional unsteady biharmonic problem of first kind. The values of φ and φx are prescribed on the boundary. Using a combination of values of φ and φx at each grid point, the difference formula is derived for the unsteady biharmonic equation without discretizing the boundary conditions. The proposed method has second order time accuracy and fourth order space accuracy using just three grid points of a single compact stencil at every time level. The first order space derivative is also computed with same accuracy as a by-product of the method. Using the Von-Neumann analysis, the derived scheme is shown to be unconditionally stable. With a slight modification, the proposed method is applicable to solve singular problems. The performance of the proposed scheme is illustrated by numerical experiments done on a collection of test problems having physical significance including the nonlinear Kuramoto–Sivashinsky equation." @default.
- W2915024310 created "2019-02-21" @default.
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- W2915024310 date "2019-01-21" @default.
- W2915024310 modified "2023-10-13" @default.
- W2915024310 title "High accuracy two-level implicit compact difference scheme for 1D unsteady biharmonic problem of first kind: application to the generalized Kuramoto–Sivashinsky equation" @default.
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- W2915024310 doi "https://doi.org/10.1080/10236198.2019.1568423" @default.
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