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A variational nodal diffusion method of high accuracy; Varijaciona nodalna difuziona metoda visoke tachnosti

Abstract

A variational nodal diffusion method with accurate treatment of transverse leakage shape is developed and presented in this paper. Using Legendre expansion in transverse coordinates higher order quasi-one-dimensional nodal equations are formulated. Numerical solution has been carried out using analytical solutions in alternating directions assuming Legendre expansion of the RHS term. The method has been tested against 2D and 3D IAEA benchmark problem, as well as 2D CANDU benchmark problem. The results are highly accurate. The first order approximation yields to the same order of accuracy as the standard nodal methods with quadratic leakage approximation, while the second order reaches reference solution. (author)
Authors:
Tomasevic, Dj; Altiparmarkov, D [1] 
  1. Institut za Nuklearne Nauke Boris Kidric, Belgrade (Yugoslavia)
Publication Date:
Jul 01, 1988
Product Type:
Conference
Report Number:
INIS-RS-0531
Resource Relation:
Conference: 32. Conference - ETAN Society for Electronics, Telecommunications, Automation, and Nuclear Engineering, ETAN '88: 32. Konferencija za elektroniku, telekomunikacije, automatiku i nuklearnu tehniku, Novi Sad (Yugoslavia), 6-10 Jun 1988; Other Information: 7 refs.; 2 figs.; 6 tabs. This record replaces record 20049345
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; BENCHMARKS; C CODES; CANDU TYPE REACTORS; COMPUTER CALCULATIONS; EVALUATED DATA; FINITE DIFFERENCE METHOD; FINITE ELEMENT METHOD; MESH GENERATION; MULTIPLICATION FACTORS; NEUTRON DIFFUSION EQUATION; POWER DISTRIBUTION; PWR TYPE REACTORS; REACTOR KINETICS; SERIES EXPANSION; THREE-DIMENSIONAL CALCULATIONS; TWO-DIMENSIONAL CALCULATIONS; VARIATIONAL METHODS
OSTI ID:
21239731
Country of Origin:
Serbia
Language:
English
Other Identifying Numbers:
TRN: RS07RA100039582
Availability:
Available from INIS in electronic form; Also available from the Institute of Nuclear Sciences VINCA
Submitting Site:
INIS
Size:
8 pages
Announcement Date:
Dec 03, 2009

Citation Formats

Tomasevic, Dj, and Altiparmarkov, D. A variational nodal diffusion method of high accuracy; Varijaciona nodalna difuziona metoda visoke tachnosti. Serbia: N. p., 1988. Web.
Tomasevic, Dj, & Altiparmarkov, D. A variational nodal diffusion method of high accuracy; Varijaciona nodalna difuziona metoda visoke tachnosti. Serbia.
Tomasevic, Dj, and Altiparmarkov, D. 1988. "A variational nodal diffusion method of high accuracy; Varijaciona nodalna difuziona metoda visoke tachnosti." Serbia.
@misc{etde_21239731,
title = {A variational nodal diffusion method of high accuracy; Varijaciona nodalna difuziona metoda visoke tachnosti}
author = {Tomasevic, Dj, and Altiparmarkov, D}
abstractNote = {A variational nodal diffusion method with accurate treatment of transverse leakage shape is developed and presented in this paper. Using Legendre expansion in transverse coordinates higher order quasi-one-dimensional nodal equations are formulated. Numerical solution has been carried out using analytical solutions in alternating directions assuming Legendre expansion of the RHS term. The method has been tested against 2D and 3D IAEA benchmark problem, as well as 2D CANDU benchmark problem. The results are highly accurate. The first order approximation yields to the same order of accuracy as the standard nodal methods with quadratic leakage approximation, while the second order reaches reference solution. (author)}
place = {Serbia}
year = {1988}
month = {Jul}
}