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Wednesday, July 8, 2020 | History

2 edition of P1 nonconforming finite element method for the solution of radiation transport problems found in the catalog.

P1 nonconforming finite element method for the solution of radiation transport problems

Kab Seok Kang

P1 nonconforming finite element method for the solution of radiation transport problems

by Kab Seok Kang

  • 238 Want to read
  • 30 Currently reading

Published by Institute for Computer Applications in Science and Engineering, NASA Langley Research Center, National Technical Information Service, distributor in Hampton, VA, Springfield, VA .
Written in English

    Subjects:
  • Radiative transfer -- Mathematical models.,
  • Finite element method -- Mathematics.

  • Edition Notes

    Other titlesICASE
    StatementKab Seok Kang.
    SeriesICASE report -- no. 2002-28, NASA/CR -- 2002-211762, NASA contractor report -- NASA CR-2002-211762.
    ContributionsInstitute for Computer Applications in Science and Engineering., Langley Research Center.
    Classifications
    LC ClassificationsCR2002 .W211762
    The Physical Object
    Pagination19 p. :
    Number of Pages19
    ID Numbers
    Open LibraryOL21495162M

    We will illustrate the finite element method using two sample problems from which the general method can be extrapolated. It is assumed that the reader is familiar with calculus and linear algebra. P1 is a one-dimensional problem where f is given, u is an unknown function of x, and u'' is the second derivative of u with respect to x. Mercedes C. Reaves, W. Keith Belvin and James P. Bailey, Finite-Element-Analysis Model and Preliminary Ground Testing of Controls-Structures Interaction Evolutionary Model Reflector, NASA TM, May , pp. W. Kyle Anderson, Grid Generation and Flow Solution Method for Euler Equations on Unstructured Grids, NASA TM, April , pp.

    TZ oai: Enabling the Next Frontier in Mobile Applications Earl Oliver. inspection of concrete using the relevant NDT method; however, coverage is brief and does not present the whole range of NDT methods used for the NDT of concrete. Concrete has become a very common construction material in most IAEA Member States and problems have occurred because of faulty construction practice. A need was therefore identified.

    ABSTRACT Mixed-Hybrid Discretization Methods for the Linear Transport Equation Serge Van Criekingen The linear Boltzmann equation describes neutron transport in nuclear systems. W. Any standard mixed finite element function space can be utilized for this mixed formulation, e.g. the Raviart-Thomas discretization which is related to the Crouzeix-Raviart nonconforming finite element scheme in the lowest-order case.


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P1 nonconforming finite element method for the solution of radiation transport problems by Kab Seok Kang Download PDF EPUB FB2

Request PDF | P1 Nonconforming Finite Element Multigrid Method for Radiation Transport | The simulation of radiation transport in the optically thick flux-limited diffusion regime is one of the Author: Kab Seok Kang.

The simulation of radiation transport in the optically thick flux-limited diffusion regime is one of the most time-consuming tasks within large multiphysics simulation codes.

Due to multimaterial complex geometry, the radiation transport system must often be solved on unstructured grids. This paper investigates the behavior and the benefits of the unstructured P1 nonconforming finite element Cited by: 8. () New intergrid transfer operator in multigrid method for P1-nonconforming finite element method.

Applied Mathematics and ComputationDietrich Braess, Wolfgang Dahmen, and Christian by: P1 Nonconforming Finite Element Multigrid Method for Radiation Transport. The focus is on the efficiency of an iterative solution method based on a controllability approach and spectral elements.

P1 Nonconforming Finite Element Method for the Solution of Radiation Transport Problems. NASA Technical Reports Server (NTRS) Kang, Kab S. The simulation of radiation transport in the optically thick flux-limited diffusion regime has been identified as one of the most time-consuming tasks within large simulation codes.

P1 Nonconforming Finite Element Method for the Solution of Radiation Transport Problems. NASA Technical Reports Server (NTRS) Kang, Kab S. The simulation of radiation transport in the optically thick flux-limited diffusion regime has been identified as one of the most time-consuming tasks within large simulation codes.

Due to multimaterial complex geometry, the radiation transport. Morley Morley finite element (need load "Morley") HCT Hsieh-Clough-Tocher C 1 finite element (need load "Element_HCT", version ) P2BR P2 Bernardi-Raugel finite element (need load "") P0edge a finite element constant per edge P1edge to P5edge a finite element polynomial on edge (need load "Element_PkEdge").

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Books. An illustration of two cells of a film strip. Video. An illustration of an audio speaker. Audio. An illustration of a " floppy disk. Software. An illustration of two photographs. Images. An illustration of a heart shape Donate. An illustration of text ellipses. In contrast, the direct time integration approach is a promising method for nonlinear problems, regardless of their time-consuming nature.

This study uses the FEM and the direct time integration procedure. Finite Element Discretisation This section deals with the discretisation of the presented variational statements in the space domain.

element matrix Given a linear variational problem, based on the sesqui-linear form a: V Ă&#x; V â&#x;&#x; C, and V-conforming finite element (K, VK, XK) with shape functions b1. Jaeeun Yoo and Ikjin Lee, Efficient Density Based Topology Optimization Using Dual-Layer Element and Variable Grouping Method for Large 3D Applications, Advances in Structural and Multidisciplinary Optimization, /_73, (), ().

Thereafter, the Finite Element-Flux Corrected Transport method (FEFCT) formulation follows in two-dimensional Cartesian, two-dimensional cylindrical axisymmetric and three-dimensional Cartesian coordinates, comprising of the predictorcorrector step based on the Taylor-Galerkin finite element method to calculate the high and low order schemes.

The OTIS‐ERB solution was derived by time‐stepping the nonlinear shallow‐water equations, with forcing at the M 2 and K 1 frequencies, on a 1/12° finite difference grid running from 86°S to 82°N.

The numerical discretization and much of the software are identical to that used for the data‐assimilating solution TPXO8. This paper presents the latest edition of the OECD indicators of product market regulation (PMR), which measure regulatory stance in 35 OECD and 11 non-OECD countries.

This update.Untuned Java code is approximately two times slower then analogous C code. It is shown that code tuning with the use of blocking technique can provide Java/C performance ratio 90 % for the LDU solution of finite element equations.

Java performance for PCG iterative solution algorithm tuned by inner loop unrolling is 75 % of the C code.Good Times / Bad Times. External Links.

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