Títol:
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A finite point method for adaptive-three-dimensional compressible flow calculations
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Autor/a:
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Ortega, Enrique; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo
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Altres autors:
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Escola Tècnica Superior d'Enginyeries Industrial i Aeronàutica de Terrassa; Universitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria; Universitat Politècnica de Catalunya. (MC)2 - Grup de Mecànica Computacional en Medis Continus |
Abstract:
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Electronic version of an article published as "International journal for numerical methods in fluids", vol. 60, no 9, 2009, p. 937-971. DOI:10.1002/fld.1892 |
Abstract:
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The finite point method (FPM) is a meshless technique, which is based on both, a weighted least-squares numerical approximation on local clouds of points and a collocation technique which allows obtaining the discrete system of equations. The research work we present is part of a broader investigation into the capabilities of the FPM to deal with 3D applications concerning real compressible fluid flow problems. In the first part of this work, the upwind-biased scheme employed for solving the flow equations is described. Secondly, with the aim of exploiting the meshless capabilities, an h-adaptive methodology for 2D and 3D compressible flow calculations is developed. This adaptive technique applies a solution-based indicator in order to identify local clouds where new points should be inserted in or existing points could be safely removed from the computational domain. The flow solver and the adaptive procedure have been evaluated and the results are encouraging. Several numerical examples are provided in order to illustrate the good performance of the numerical methods presented. |
Abstract:
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Peer Reviewed |
Matèries:
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-Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits -Àrees temàtiques de la UPC::Física::Física de fluids::Flux de fluids -Meshfree methods (Numerical analysis) -Finite element method -Meshless methods -Finite point method -Adaptivity -Collocation -Compressible flow -Time integration explicit -Mecànica de fluids -- Elements finits -Elements finits, Mètode dels -Classificació AMS::76 Fluid mechanics |
Drets:
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Tipus de document:
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Article - Versió presentada Article |
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