3 edition of High-order/spectral methods on unstructured grids. found in the catalog.
March 2001.Includes bibliographical references.Prepared for Langley Research Center C NAS1-97046 WU 505-90-52-01
|Statement||Institute for Computer Applications in Science and Engineering, NASA Langley Research Center|
|Publishers||Institute for Computer Applications in Science and Engineering, NASA Langley Research Center|
|The Physical Object|
|Pagination||xvi, 105 p. :|
|Number of Pages||81|
|2||NASA contractor report -- NASA CR-2001-210836.|
|3||NASA/CR -- 2001-210836|
nodata File Size: 8MB.
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Recently, these methods were extended to three-dimensional systems and to the Navier Stokes equations. Nonreflecting boundary conditions for Maxwell's equations. Benchmark plate radar targets for the validation of computational electromagnetics programs.
We solve the steady state equations by advancing in time using a backward Euler BE scheme.
To avoid the inversion of a large matrix we approximate BE by an implicit lower-upper symmetric Gauss-Seidel LU-SGS algorithm.
Analyzed and proved linear stability of SRT schemes for mixed elements. To avoid the inversion of a large matrix we approximate BE by an implicit lower-upper symmetric Gauss-Seidel LU-SGS algorithm. A Theoretical Method for the Calculation of the Radar Cross Sections of Aircraft and Missiles, Technical Report 2591-1-M, University of Michigan.
A study of viscous flux formulations was carried out for the SV method. Solution strategies to remedy this problem include implicit methods and multigrid methods. Note on the convergence of the discontinuous Galerkin method for a scalar hyperbolic equation.
Our present results demonstrated that the SDRT method is stable and high-order accurate in two dimensions 2D for a number of test problems by using triangular-, quadrilateral-, and mixed-element meshes for both inviscid and viscous flows.
Fourier analysis revealed some interesting advantages for the penalty method.
A Von Neumann stability analysis is applied to the two dimensional linear advection equation to determine its damping properties.