A Wavelet Optimized Adaptive Multi-Domain Method
نویسندگان
چکیده
The formulation and implementation of wavelet based methods for the solution of multidimensional partial differential equations in complex geometries is discussed. Utilizing the close connection between Daubechies wavelets and finite difference methods on arbitrary grids, we formulate a wavelet based collocation method, well suited for dealing with general boundary conditions and nonlinearities. To circumvent problems associated with completely arbitrary grids and complex geometries, we propose to use a multi-domain formulation to solve the partial differential equation, with the ability to adapt the grid as well as the order of the scheme within each subdomain. In addition to supplying the required geometric flexibility, the multi-domain formulation also provides a very natural load-balanced data-decomposition, suitable for parallel environments. The performance of the overall scheme is illustrated by solving two dimensional hyperbolic problems.
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