2125 pFTTデータ構造を用いたオクツリー解適合格子によるシミュレーション(G01-3 計算力学(3),GO1 計算力学)

Translated title of the contribution: 2125 A Study of AMR simulation with pFTT Data Structures

岩田 正子, 小野 謙二, 玉木 剛

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Abstract

This paper describes a simulation of octree AMR using Fully Threaded Tree with Pedigree (pFTT) data structure that is most suitable for adaptive mesh strategy among standard, FTT and pFTT data structures. To validate the present approach, a scalar transport equation was calculated on pFTT, using AMR with scalar gradient as an index for joining and splitting cells. According to numerical experiments, it was found that this method was able to capture a face of discontinuity appropriately. Skipping the process of joining and splitting, however, leads to the decline of the numerical accuracy and the increase of the calculation costs. Reasonably good results were obtained with every or every 2 steps joining and splitting on pFTT using AMR.
Original languageJapanese
Pages (from-to)75-76
Number of pages2
Journal年次大会講演論文集 : JSME annual meeting
Volume2006
Issue number1
Publication statusPublished - Sep 15 2006

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@article{5dfb922815c9458f958ad15bc7ea4eaf,
title = "2125 pFTTデータ構造を用いたオクツリー解適合格子によるシミュレーション(G01-3 計算力学(3),GO1 計算力学)",
abstract = "This paper describes a simulation of octree AMR using Fully Threaded Tree with Pedigree (pFTT) data structure that is most suitable for adaptive mesh strategy among standard, FTT and pFTT data structures. To validate the present approach, a scalar transport equation was calculated on pFTT, using AMR with scalar gradient as an index for joining and splitting cells. According to numerical experiments, it was found that this method was able to capture a face of discontinuity appropriately. Skipping the process of joining and splitting, however, leads to the decline of the numerical accuracy and the increase of the calculation costs. Reasonably good results were obtained with every or every 2 steps joining and splitting on pFTT using AMR.",
author = "正子 岩田 and 謙二 小野 and 剛 玉木",
year = "2006",
month = "9",
day = "15",
language = "Japanese",
volume = "2006",
pages = "75--76",
journal = "年次大会講演論文集 : JSME annual meeting",
publisher = "一般社団法人日本機械学会",
number = "1",

}

TY - JOUR

T1 - 2125 pFTTデータ構造を用いたオクツリー解適合格子によるシミュレーション(G01-3 計算力学(3),GO1 計算力学)

AU - 岩田, 正子

AU - 小野, 謙二

AU - 玉木, 剛

PY - 2006/9/15

Y1 - 2006/9/15

N2 - This paper describes a simulation of octree AMR using Fully Threaded Tree with Pedigree (pFTT) data structure that is most suitable for adaptive mesh strategy among standard, FTT and pFTT data structures. To validate the present approach, a scalar transport equation was calculated on pFTT, using AMR with scalar gradient as an index for joining and splitting cells. According to numerical experiments, it was found that this method was able to capture a face of discontinuity appropriately. Skipping the process of joining and splitting, however, leads to the decline of the numerical accuracy and the increase of the calculation costs. Reasonably good results were obtained with every or every 2 steps joining and splitting on pFTT using AMR.

AB - This paper describes a simulation of octree AMR using Fully Threaded Tree with Pedigree (pFTT) data structure that is most suitable for adaptive mesh strategy among standard, FTT and pFTT data structures. To validate the present approach, a scalar transport equation was calculated on pFTT, using AMR with scalar gradient as an index for joining and splitting cells. According to numerical experiments, it was found that this method was able to capture a face of discontinuity appropriately. Skipping the process of joining and splitting, however, leads to the decline of the numerical accuracy and the increase of the calculation costs. Reasonably good results were obtained with every or every 2 steps joining and splitting on pFTT using AMR.

UR - http://ci.nii.ac.jp/naid/110006634289

M3 - 記事

VL - 2006

SP - 75

EP - 76

JO - 年次大会講演論文集 : JSME annual meeting

JF - 年次大会講演論文集 : JSME annual meeting

IS - 1

ER -