Results 241 to 250 of about 55,201 (283)

Airfoil Calculations in Cartesian Grids

1989
A technique to compute two-dimensional flows on Cartesian grids in the presence of bodies of arbitrary shape is presented. The basic technique is patterned on the A-scheme and shock-fitting procedures. The special handling of boundary conditions on rigid bodies is described in detail. A description of the application of the technique to the calculation
Gino Moretti, Andrea Dadone
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Nonet-Cartesian Grid Method for Shock Flow Computations

Journal of Scientific Computing, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, Ke, Wu, Ziniu
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Flow Visualization on Hierarchical Cartesian Grids

2002
Due to the limitations of the traditional finite volume CFD approach modern Lattice-Boltzmann methods are becoming more and more widespread. The results of developing an efficient visualization and exploration tool based on the Lattice-Boltzmann solver PowerFlow are summarized here to give the reader a basic insight into the pros and cons of such an ...
St. Roettger, Th. Ertl, M. Schulz, W. Bartelheimer   +3 more
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A Cartesian Grid Method with Transient Anisotropic Adaptation

Journal of Computational Physics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ham, F. E., Lien, F. S., Strong, A. B.
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Body capturing using adaptive cartesian grids

1994
Abstract In recent years there has been considerable interest in using adaptive cartesian grids to compute complex flows (e.g. Berger & Collela 1989; Berger & Leveque 1990; Quirk, J.J. 1990). Such methods are extremely effective for the interior part of the flow, but they suffer from the disadvantage that they do not represent ...
S A E G Falle, J R Giddings
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FDTD in Cartesian and Spherical Grids

2018
The numerical dispersion relation is derived for the finite-difference time-domain method when implemented on spherical grids using Maxwell’s equations in spherical coordinates. Derivation is appropriately based on elementary spherical functions which renders the resulting numerical dispersion relation valid for all spherical FDTD space including near ...
Mohammed Hadi, Atef Elsherbeni, Ravi Bollimuntha, Melinda Piket-May   +3 more
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Euler calculations for wings using Cartesian grids

25th AIAA Aerospace Sciences Meeting, 1987
A method is presented for the calculation of transonic flows past wings using Cartesian grids. The calculations are based on a finite volume formulation of the Euler equations. Results are presented for a rectangular wing with a flat tip and the ONERA M6 wing.
R. GAFFNEY, JR., H. HASSAN
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Using hierarchical Cartesian grids with multigrid acceleration

International Journal for Numerical Methods in Engineering, 2006
AbstractThis paper describes the use of a multigrid strategy on hierarchical Cartesian grids for the simulation of small amplitude inviscid waves in a tank. Quadtree grid generation by recursive subdivision is described and the grid storage system discussed along with the associated grid operations, such as neighbour finding and identification of empty
Carlos M. Silva Santos, Deborah M. Greaves   +1 more
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Fast sparse kernel summation on cartesian grids

Proceedings of the 3rd International Conference on High Performance Compilation, Computing and Communications, 2019
This paper proposes a fast algorithm for evaluating summations of heterogenous sparse kernels of the form [EQUATION] points on an arbitrary fine Cartesian grid in Rd. The algorithm takes the advantage of sparsity and the structure of Cartesian grids.
Shengxin Zhu, Andrew J Wathen
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A Hybrid Grid Generation Using Unstructured Prismatic and Cartesian Grids

41st Aerospace Sciences Meeting and Exhibit, 2003
A hybrid gri d generation method based on prismatic and Cartesian grid is being developed. The main objective is to generate grid around c omplicated geometry for compressible and viscou s flow simulation , especially that with high Reynolds number . The method is based on unstructured grid, which treats cells as arbitrary, unstructured polyhedra.
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