LES of Internal Combustion Engine Flows Using Cartesian Overset Grids
Oil & Gas Science and Technology, 2017 Accurate computations of turbulent flows using the Large-Eddy Simulation (LES) technique with an appropriate SubFilter Scale (SFS) model require low artificial dissipation such that the physical energy cascade process is not perturbed by numerical ...
Falkenstein Tobias +7 more
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Performance of Overset Mesh in Modeling the Wake of Sharp-Edge Bodies
Computation, 2020 The wake dynamics of sharp-edge rigid panels is examined using Overset Grid Assembly (OGA) utilized in OpenFOAM, an open-source platform. The OGA method is an efficient solution technique based on overlap of a single or multiple moving grids on a ...
Suyash Verma, Arman Hemmati
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Numerical Analysis of Propeller Wake Evolution under Different Advance Coefficients
Journal of Marine Science and Engineering, 2023 Propeller wake fields in an open-water configuration were compared between two loading circumstances using large-eddy simulation (LES) with a computational domain of 48 million grids and an overset mesh technique. To validate the results of the numerical
Duo Yu +5 more
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Application of Novel Hybrid Mesh Generation Methodologies for Improved Unstructured CFD Simulations [PDF]
, 2010 On the basis of the DLR contribution to DPW4, a procedure to produce an unstructured grid-convergence family as self-similar as possible is documented, with a specific procedure for steering the nearfield, advancing-layer process.
Simone Crippa, Crippa, Simone
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Large-Eddy Simulation of Unsteady Flow in a Mixed-Flow Pump
International Journal of Rotating Machinery, 2003 This article describes the large-eddy simulation (LES) of the internal flows of a high–specific-speed, mixed-flow pump at low flow-rate ratios over which measured head-flow characteristics exhibit weak instability. In order to deal with a moving boundary
Chisachi Kato +2 more
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An analysis of performance enhancement techniques for overset grid applications [PDF]
Proceedings International Parallel and Distributed Processing Symposium, 2004 The overset grid methodology has significantly reduced time-to-solution of high-fidelity computational fluid dynamics (CFD) simulations about complex aerospace configurations. The solution process resolves the geometrical complexity of the problem domain by using separately generated but overlapping structured discretization grids that periodically ...
M. Jahed Djomehri +3 more
openaire +2 more sources
Improvement of Unstructured Computational Fluid Dynamics Simulations Through Novel Mesh Generation Methodologies [PDF]
, 2011 On the basis of the DLR contribution to DPW4, a procedure to produce an unstructured grid-convergence family as self-similar as possible is documented, with a specific procedure for steering the near-field, advancing-layer process.
Simone Crippa, Crippa, Simone
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Multigrid for high-order accurate difference equations on overset grids
, 2022 August 2021School of ScienceMultigrid algorithms of solving elliptic or hyperbolic partial differential equations and boundary value problems to high-order accuracy on overset grids are developed and studied in this thesis.
Liu, Chang
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A hybrid recursive regularized lattice Boltzmann model with overset grids for rotating geometries [PDF]
, 2021 International audienceSimulating rotating geometries in fluid flows for industrial applications remains a challenging task for general fluid solvers and in particular for the lattice Boltzmann method (LBM) due to inherent stability and accuracy problems.
P. Sagaut +11 more
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Computation of Multi-Passage Cascade Flows With Overset and Deforming Grids
, 1997 An overset grid method is applied to the solution of single and multi-passage cascade flows with a compressible Navier-Stokes solver. C-type grids around individual blades are overset onto a Cartesian background grid. Overset grids are allowed to move in
Tuncer, İsmail Hakkı +3 more
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