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Title:
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Meshless approximations and lagrangian formulation to solve free surface flows
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Author:
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Idelsohn Barg, Sergio Rodolfo; Oñate Ibáñez de Navarra, Eugenio; Storti, M
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental; Universitat Politècnica de Catalunya. GMNE - Grup de Mètodes Numèrics en Enginyeria |
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Abstract:
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A meshless method is presented for the solution of the incompressible fluid flow equation using a lagrangian formulation. The interpolated function are those used in the moving least square approximations and the time integration is introduced in a semi-implicit way by a fractional step method. Both classical stabilization terms used in incompressible Navier-Stokes equations are unnecessary: numerical diffusion for convective terms are unnecessary due to the lagrangian formulation, and stabilization of pressure due to the incompressibility constraint for equal order interpolations is eliminated using the fractional step method. |
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Subject(s):
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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
-Fluids--Mathematical models
-Particle method
-Lagrange formulation
-Incompressible Fluid Flows
-Meshless
-Fluids -- Models matemàtics |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE)
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