Implementation of functional expansion tally method and order selection strategy in Monte Carlo code RMC

Zhenyu Wang; Shichang Liu; Ding She; Yang Su; Yixue Chen

doi:https://doi.org/10.1016/j.net.2020.07.018

추천

검색

자료유형: 학술저널

저자정보: Zhenyu Wang (North China Electric Power University) Shichang Liu (North China Electric Power University) Ding She (Tsinghua University) Yang Su (China Institute of Atomic Energy) Yixue Chen (North China Electric Power University)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제2호

발행연도: 2021.2

수록면: 430 - 438 (9page)

DOI: https://doi.org/10.1016/j.net.2020.07.018

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

The spatial distribution of neutron flux or reaction rate was calculated by cell or mesh tally in traditionalMonte Carlo simulation. However, either cell or mesh tally leads to the increase of memory consumptionand simulation time. In this paper, the function expansion tally (FET) method was developed in ReactorMonte Carlo code RMC to solve this problem. The FET method was applied to the tallies of neutron fluxdistributions of uranium block and PWR fuel rod models. Legendre polynomials were used in the axialdirection, while Zernike polynomials were used in the radial direction. The results of flux, calculationtime and memory consumption of different expansion orders were investigated, and compared with themesh tally. Results showed that the continuous distribution of flux can be obtained by FET method. Theflux distributions were consistent with that of mesh tally, while the memory consumption and simulationtime can be effectively reduced. Finally, the convergence analysis of coefficients of polynomialswere performed, and the selection strategy of FET order was proposed based on the statistics uncertaintyof the coefficients. The proposed method can help to determine the order of FET, which was meaningfulfor the efficiency and accuracy of FET method.

#Monte Carlo #Function expansion tally #Order selection strategy #RMC

참고문헌 (14)

참고문헌 신청

William L. Chadsey / 1975 / X-Ray Photoemission Calculations / IEEE Transactions on Nuclear Science 22(6):2345~2350

D. P. Griesheimer / 2004 / Two dimensional functional expansion tallies for Monte Carlo simulations

P. K. Romano / 2013 / The OpenMC Monte Carlo particle transport code / Ann. Nucl. Energy 51:274~281

M. Ellis / 2017 / Preliminary coupling of the Monte Carlo code OpenMC and the multiphysics object-oriented simulation environment for analyzing Doppler feedback in Monte Carlo simulations / Nucl. Sci. Eng 185(1):184~193

A. Novak / 2018 / Preliminary coupling of OpenMC and Nek5000 within the MOOSE framework / Proceedings of PHYSOR

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!