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- W2551952941 abstract "The numerical simulation of internal and external flows using the Immersed Boundary Methods allows the insertion of bodies by a force field added to the Navier-Stokes equations source term. The geometries are formed by a lagrangean mesh that overlaps, without interference, the eulerian mesh which the flow are been solved. This metodology permits, for instance, the complete independence of the lagrangean geometry, suitable for very complex flow simulation such as fluid-structure interaction. However, the evaluation of the lagrangean force field is not trivial, and several approaches are found in the literature. The Physical Virtual Model PVM, a methodology to obtain the lagrangean force field, has shown very competitive when compared against the traditional methods. In this work, an extension to the PVM to 3D domains is proposed and the classical flow around a sphere was chosen as a test case. The numerical code was written in Fortran 90 for an in-house Beowulf-class cluster with a MPI parallel library. The Navier-Stokes equations were implicit discretized by the Finite Volume Method in a spatial and temporal second order approximation. The results for flow field topologies and drag coefficients were compared against those in the literature, up to a Reynolds number of 1000." @default.
- W2551952941 created "2016-11-30" @default.
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- W2551952941 date "2005-01-01" @default.
- W2551952941 modified "2023-09-23" @default.
- W2551952941 title "NUMERICAL SIMULATION OF THE FLOW AROUND A SPHERE USING THE IMMERSED BOUNDARY METHOD" @default.
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