Zobrazeno 1 - 10
of 33
pro vyhledávání: '"D. S. McRae"'
Publikováno v:
Journal of Computational and Applied Mathematics. 152:69-81
In this paper we report on a computational study in which a nonsmooth discretization of the Euler equations for flow in a nozzle is solved with splitting method which is in turn globalized with the method of pseudo-transient continuation.
Publikováno v:
Journal of Geophysical Research: Atmospheres. 106:24245-24257
A new dynamic solution adaptive grid algorithm, DSAGA-PPM, has been developed for use in air quality modeling. In this paper, this algorithm is described, and is evaluated with a test problem. Cone-shaped distributions of various chemical species und
Publikováno v:
Atmospheric Environment. 35:4801-4818
A new dynamic adaptive grid algorithm has been developed for use in air quality modeling. This algorithm uses a higher order numerical schemeFthe piecewise parabolic method (PPM)Ffor computingadvective solution fields; a weight function capable of pr
Publikováno v:
Journal of Computational Physics. 165:437-472
A new dynamic adaptive grid algorithm has been developed for use in air-quality modeling. This algorithm uses a higher order numerical scheme—the piecewise parabolic method (PPM)—for computing advective solution fields, a weight function capable
Autor:
D. S. Mcrae, Jack R. Edwards
Publikováno v:
AIAA Journal. 31:1222-1228
An efficient implicit Navier-Stokes method for computing steady, three-dimensional flowfields characteristic of high-speed propulsion systems is presented. A nonlinear iteration strategy based on planar Gauss-Siedel sweeps is used to drive the soluti
Autor:
Jack R. Edwards, D. S. Mcrae
Publikováno v:
AIAA Journal. 31:57-60
A highly efficient implicit method for the computation of steady, two-dimensional compressible Navier-Stokes flowfields is presented. The discretization of the governing equations is hybrid in nature, with flux-vector splitting utilized in the stream
Autor:
D. S. Mcrae, Paul D. Orkwis
Publikováno v:
AIAA Journal. 30:78-85
A new method for calculating the 2-D, laminar Navier-Stokes equations is presented. The method uses Newton's method for nonlinear systems of equations to find steady-state solutions. The Navier-Stokes equations are approximated by finite differences
Autor:
Jack R. Edwards, D. S. Mcrae
The research performed during this period has produced and demonstrated all of the required codes, algorithms and technology needed to analyze dynamically scramjet propulsion modules, both singly and ganged. Cold-flow unstart of a generic hydrocarbon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4198dfdf7f97ed8441aae34fa05dba45
https://doi.org/10.21236/ada399718
https://doi.org/10.21236/ada399718
Publikováno v:
39th Aerospace Sciences Meeting and Exhibit.
Time accurate high-speed flow calculations using a three-dimensional adaptive mesh algorithm with a time accurate implicit Navier-Stokes solver are presented in this work. A dynamic grid adaptation algorithm is developed which improves grid orthogona
Autor:
D. S. McRae, M. A. Zikry
This report reviews work performed toward the goal of simulating time accurately the initiation of flow in a hypersonic shock tunnel, including coupled diaphragm rupture mechanics. A solution-adaptive mesh Naver-Stokes code was modified to improve me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::896fd89647d7e09cbcd1298414b7776a
https://doi.org/10.21236/ada378084
https://doi.org/10.21236/ada378084