TY - GEN
T1 - Determination of temporal and spatial origination of transonic buffet via unsteady data mining
AU - Chiba, Kazuhisa
AU - Umeda, Yuhei
AU - Hamada, Naoki
AU - Watanabe, Shinya
AU - Nakata, Masaya
AU - Yasue, Kanako
AU - Suzuki, Koji
AU - Atobe, Takashi
AU - Kuchi-Ishi, Shigeru
AU - Nakakita, Kazuyuki
AU - Ito, Takeshi
N1 - Funding Information:
Part of this study was supported by JSPS KAKENHI Grant Number JP16K00295 as well as the contract research JX-PSPC-44192 and JX-PSPC-458549 from JAXA. Whole images were created by using FieldView16.1 as provided by Intelligent Light via its University Partners Program.
Publisher Copyright:
© 2018 by the authors.
PY - 2018
Y1 - 2018
N2 - The Betti sequence which is one of the topological data analysis has been applied to the time series dataset in which a transonic buffet occurred. In this project, we aim to find temporal and spatial originations of transonic buffet by data analyses, therefore, numerical fluid analysis is performed by unsteady detached eddy simulation which sweeps angle of attack, then datasets are created. In this paper, as the first trial, we set up six monitoring points in the vicinity where the transonic buffet passes on the wing upper surface; the Betti sequence was applied to the x-directional velocity and the pressure. As a result, on the wing surface, the Betti sequence only responded to the pulse of the physical quantity, as the disturbance of the physical quantities by the separation behind the shockwave and that by the transonic buffet are similar. Other monitoring points should be provided outside the separation region.
AB - The Betti sequence which is one of the topological data analysis has been applied to the time series dataset in which a transonic buffet occurred. In this project, we aim to find temporal and spatial originations of transonic buffet by data analyses, therefore, numerical fluid analysis is performed by unsteady detached eddy simulation which sweeps angle of attack, then datasets are created. In this paper, as the first trial, we set up six monitoring points in the vicinity where the transonic buffet passes on the wing upper surface; the Betti sequence was applied to the x-directional velocity and the pressure. As a result, on the wing surface, the Betti sequence only responded to the pulse of the physical quantity, as the disturbance of the physical quantities by the separation behind the shockwave and that by the transonic buffet are similar. Other monitoring points should be provided outside the separation region.
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U2 - 10.2514/6.2018-0036
DO - 10.2514/6.2018-0036
M3 - Conference contribution
AN - SCOPUS:85044379012
SN - 9781624105241
T3 - AIAA Aerospace Sciences Meeting, 2018
BT - AIAA Aerospace Sciences Meeting
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - AIAA Aerospace Sciences Meeting, 2018
Y2 - 8 January 2018 through 12 January 2018
ER -