A meshless finite point method for three-dimensional analysis of compressible flow problems involving moving boundaries and adaptivity
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A finite point method for solving compressible flow problems involving moving boundaries and adaptivity is presented. The numerical methodology is based on an upwind-biased discretization of the Euler equations, written in arbitrary Lagrangian–Eulerian form and integrated in time by means of a dual-time steeping technique. In order to exploit the meshless potential of the method, a domain deformation approach based on the spring network analogy is implemented, and h-adaptivity is also employed in the computations. Typical movable boundary problems in transonic flow regime are solved to assess the performance of the proposed technique. In addition, an application to a fluid–structure interaction problem involving static aeroelasticity illustrates the capability of the method to deal with practical engineering analyses. The computational cost and multi-core performance of the proposed technique is also discussed through the examples provided.
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CitacióOrtega, E., Oñate, E., Idelsohn, S.R., Flores, R. A meshless finite point method for three-dimensional analysis of compressible flow problems involving moving boundaries and adaptivity. "International journal for numerical methods in fluids", Octubre 2013, vol. 73, núm. 4, p. 323-343.
Versió de l'editorhttp://onlinelibrary.wiley.com/doi/10.1002/fld.3799/full