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in subjects: "Iterative Methods"  
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Geothermal reservoir engineering code: comparison and validation

Description: INTERCOMP has simulated six geothermal reservoir problems. INTERCOMP's geothermal reservoir model was used for all problems. No modifications were made to this model except to provide tabular output of the simulation results in the units used in RFP No. DE-RP03-80SF-10844. No difficulty was encountered in performing the problems described herein, although setting up the boundary and grid conditions exactly as specified were sometimes awkward, and minor modifications to the grid system were nece… more
Date: February 27, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Godunov-Inverse Iteration: A Fast and Accurate Solution to the Symmetric Tridiagonal Eigenvalue Problem.

Description: We present a new hybrid algorithm based on Godunov's method for computing eigenvectors of symmetric tridiagonal matrices and Inverse Iteration, which we call the Godunov-Inverse Iteration Algorithm. We use eigenvectors computed according to Godunov's method as starting vectors in the Inverse Iteration, replacing any nonnumeric elements of the Godunov eigenvectors with random uniform numbers. We use the right-hand bounds of the Ritz intervals found by the bisection method as Inverse Iteration sh… more
Date: November 27, 2002
Creator: Matsekh, Anna M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Robust controller design of four wheel steering systems using mu synthesis techniques

Description: In this paper, a linearized four wheel steering (4WS) system model is deduced and then modified into a form which is appropriate for applying Matlab {mu} Toolbox to design robust controller. Several important topics are discussed in detail, such as (1) how to make system set-up match Matlab {mu} Toolbox requirement, (2) how to select weights based on plant`s uncertainty, (3) how to solve controller discretization problem, and (4) how to adjust the system so that the conditions necessary for usi… more
Date: February 27, 1995
Creator: Gao, X.; McVey, B. D. & Tokar, R. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Distribution-independent hierarchicald N-body methods

Description: The N-body problem is to simulate the motion of N particles under the influence of mutual force fields based on an inverse square law. The problem has applications in several domains including astrophysics, molecular dynamics, fluid dynamics, radiosity methods in computer graphics and numerical complex analysis. Research efforts have focused on reducing the O(N{sup 2}) time per iteration required by the naive algorithm of computing each pairwise interaction. Widely respected among these are the… more
Date: July 27, 1994
Creator: Aluru, S.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

A Heterogeneous Medium Analytical Benchmark

Description: A benchmark, called benchmark BLUE, has been developed for one-group neutral particle (neutron or photon) transport in a one-dimensional sub-critical heterogeneous plane parallel medium with surface illumination. General anisotropic scattering is accommodated through the Green's Function Method (GFM). Numerical Fourier transform inversion is used to generate the required Green's functions which are kernels to coupled integral equations that give the exiting angular fluxes. The interior scalar f… more
Date: September 27, 1999
Creator: Ganapol, B. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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