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On adaptive refinement and overset structured grids
13th Computational Fluid Dynamics Conference, 1997The need for adaptive refinement for unsteady aerodynamic applications that may involve relative motion between configuration component parts is recognized. Computational advantages of structured data are reviewed. Properties of uniform Cartesian (structured) grids that lead to substantial computational advantages are identified.
Robert Meakin, Robert Meakin
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Multigrid approach to overset grid communication
AIAA Journal, 1995Summary: The nonaligned multigrid method is introduced as an alternative to boundary point interpolation for communication in overset grid systems. The nonaligned multigrid method treats the individual grids as levels in a multigrid solution procedure. This technique was able to converge 69\% faster than standard boundary point interpolation for Mach 2
Johnson, Rudy A., Belk, Dave M.
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Improved interpolation for viscous overset grids
35th Aerospace Sciences Meeting and Exhibit, 1997A method for improving the interpolation utilized in overlapping grid systems is presented. The method modifies the mapping from computational space to physical space to provide a mapping where the boundary faces of the grid lie on the corresponding geometry surface.
Ralph Noack +3 more
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An overset-grid method for 3D unsteady incompressible flows
Journal of Computational Physics, 2003zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tang, H. S. +2 more
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Challenges and applications of overset grid coupling strategies
PAMM, 2017AbstractThe paper deals with the mass conservation and geometry intersection of overset grid coupling strategies. The interpolation based grid coupling of the overset procedure violates the inherent mass conservation of finite‐volume methods. This is problematic since incompressible finite‐volume solvers directly use the mass defect when solving for ...
Svenja Schubert, Thomas Rung
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On the overset grids in computational Marine Hydrodynamics
2022An overview of using overset grids in computational marine hydrodynamics is presented. The main advantage of this method is the ability to capture large rigid body displacements that a ship withstands during voyage. Two different cases are presented in which overset grids are appropriate, using open source CFD toolkit OpenFOAM® [1].
Sulovsky, Ivan, Prpić-Oršić, Jasna
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Tracking flow features using overset grids
31st Aerospace Sciences Meeting, 1993A method is proposed to use overset grid topology to track dynamic flow features. Features of interest such as moving shock waves and vortices are overset with relatively fine tracker grids. Solutions are computed on the various grids and information is exchanged at intergrid boundaries.
KALPANA CHAWLA, DAVID BANKS
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On overset interpolation strategies and conservation on unstructured grids in OpenFOAM
Computer Physics Communications, 2019zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Icing modelling in NSMB with chimera overset grids
AIP Conference Proceedings, 2015In aerospace Engineering, the accurate simulation of ice accretion is a key element to increase flight safety and avoid accidents related to icing effects. The icing code developed in the NSMB solver is based on an Eulerian formulation for droplets tracking, an iterative Messinger model using a modified water runback scheme for ice thickness ...
D. Pena +3 more
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A Combined Implementation of Overset Grid and Patched Grid Methodologies
2016The paper discusses the combined implementation of overset grid and patched grid methodologies and it’s testing for transonic and supersonic flows. The motivation is to make the grid generation process easier and less time consuming as well as having optimum resolution as per the requirement of local flow gradients, with no effect on the accuracy of ...
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