A point collocation method based on reproducing kernel approximations
β Scribed by N. R. Aluru
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 958 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0029-5981
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β¦ Synopsis
A reproducing kernel particle method with built-in multiresolution features in a very attractive meshfree method for numerical solution of partial di!erential equations. The design and implementation of a Galerkin-based reproducing kernel particle method, however, faces several challenges such as the issue of nodal volumes and accurate and e$cient implementation of boundary conditions. In this paper we present a point collocation method based on reproducing kernel approximations. We show that, in a point collocation approach, the assignment of nodal volumes and implementation of boundary conditions are not critical issues and points can be sprinkled randomly making the point collocation method a true meshless approach. The point collocation method based on reproducing kernel approximations, however, requires the calculation of higher-order derivatives that would typically not be required in a Galerkin method, A correction function and reproducing conditions that enable consistency of the point collocation method are derived. The point collocation method is shown to be accurate for several one and two-dimensional problems and the convergence rate of the point collocation method is addressed.
π SIMILAR VOLUMES
## Abstract A point interpolation meshless method is proposed based on combining radial and polynomial basis functions. Involvement of radial basis functions overcomes possible singularity associated with the meshless methods based on only the polynomial basis. This nonβsingularity is useful in con