Search Results 1-20 of 1742

池田 友明 , IKEDA Tomoaki

流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2020オンライン (2020年9月28日-30日. 日本航空宇宙学会 : 宇宙航空研究開発機構(JAXA)オンライン会議)形態: カラー図版あり資料番号: AA2030013008レポート番号: JAXA-SP-20-008

宇宙航空研究開発機構特別資料: 流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2020オンライン論文集 = JAXA Special Publication: Proceedings of Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2020 Online (JAXA-SP-20-008), 53-57, 2021-02-08

IR 

MATSUNAGA Takuya , KOSHIZUKA Seiichi

… In recent years, accurate spatial discretization schemes have been developed for a particle method. … However, the actual convergence rate in space tends to be much lower than the order of the leading truncation error given by an adopted spatial discretization scheme. … This suggests that the Δ<i>t</i>-dependent error is comparably significant with respect to the truncation error of the spatial discretization scheme. …

Transactions of the JSME (in Japanese) 87(895), 20-00437-20-00437, 2021

J-STAGE 

Nakada Ryosei , Abou Al-Ola Omar M. , Yoshinaga Tetsuya

… The proposed method, which is an iterative algorithm derived from the discretization of a continuous-time dynamical system, can handle not only dose-volume but also mean-dose constraints directly in IMRT treatment planning. …

Computational and Mathematical Methods in Medicine (2020), 3096067, 2020-09-03

IR 

南原 恵 , 寺原 拓哉 , 滝沢 研二 , Tezduyar Tayfun E.

計算工学講演会論文集 Proceedings of the Conference on Computational Engineering and Science 25, 5p, 2020-06

Yoshida Takumi , Okuzono Takeshi , Sakagami Kimihiro

… Earlier, the authors proposed an efficient room acoustic solver using explicit TD-FEM having fourth-order accuracy in both space and time using low-order discretization techniques. … As described herein, that difficulty is solved by construction of a specially designed time-integration method for time discretization. …

Applied Sciences 10(11), 3750, 2020-05-28

IR 

名取 拓弥 , 中山 司

… To suppress unnatural numerical oscillation in pressure distribution, two stabilizing techniques, such as the artiåcial density diãusion and the density re-initialization method, are employed in addition to the artiåcial viscosity used in the conventional SPH discretization. …

中央大学理工学研究所論文集 (25), 57-71, 2020-03-31

IR  DOI 

Anderson Douglas R.

数理解析研究所講究録 (2149), 14-28, 2020-03

IR 

YONEZAWA Heisei , KAJIWARA Itsuro , NISHIDOME Chiaki , HATANO Takashi , SAKATA Masato , HIRAMATSU Shigeki

… To cope with the long cycle, the sampled-data controller, which can be designed without discretization, is used. …

The Proceedings of the Dynamics & Design Conference 2020(0), 541, 2020

J-STAGE 

ONISHI Yuki , IBUKI Tatsuya , KAJITA Shuuji , SAMPEI Mitsuji

… <p>This paper reviews a dynamics discretization method called spatially quantized dynamics (SQD) and shows that time scale transformation yields the SQD. …

The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2020(0), 2A2-G10, 2020

J-STAGE 

KAWASAKI Koji , NIMURA Masaki , ARIMITSU Tsuyoshi

<p>　沿岸部の発電所取水施設に対する津波流入過程を精度よく評価するため，3次元数値波動水槽CADMAS-SURF/3Dによる数値シミュレーションを実施した．水理実験の再現性向上を目的にパラメータスタディを行った結果，壁境界条件，移流項の離散化手法，乱流モデルそれぞれに対して，壁関数，1次精度風上差分，標準<i>k-ε</i>モデルを使用した条件で再現性がよい結 …

Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 76(2), I_180-I_185, 2020

J-STAGE