@inproceedings{oai:jaxa.repo.nii.ac.jp:00004003, author = {金森, 正史 and 橋本, 敦 and 青山, 剛史 and 牧野, 好和 and 石川, 敬掲 and 山本, 雅史 and 飯村, 拓哉 and Kanamori, Masashi and Hashimoto, Atsushi and Aoyama, Takashi and Makino, Yoshikazu and Ishikawa, Hiroaki and Yamamoto, Masafumi and Iimura, Takuya}, book = {宇宙航空研究開発機構特別資料: 第45回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2013論文集, JAXA Special Publication}, month = {Mar}, note = {第45回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2013 (2013年7月4日-5日. タワーホール船堀), 東京, 45th Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2013 (July 4-5, 2013. Tower Hall Funabori), Tokyo, Japan, The method for predicting sonic boom consists basically on the combination of the computational fluid dynamics(CFD) analyses on the near-field and waveform propagation analyses on the far-field. It is, however, a tough work to conduct CFD analyses in order to obtain accurate initial conditions for estimating far-field waveform. For a vehicle with complex geometry, several lengths of the vehicle must be calculated with CFD analysis, which is unfavorable from a view point of computational costs. The multipole analysis technique is one of the solutions of this problem. In the analysis, near-field waveforms are modified so as to attenuate only in the circumferential direction, which is available by introducing the distributions of multipoles. As a result, a far-field waveform becomes independent of the location where the initial condition is obtained, 形態: カラー図版あり, Physical characteristics: Original contains color illustrations, 資料番号: AA0062268003, レポート番号: JAXA-SP-13-011}, pages = {13--18}, publisher = {宇宙航空研究開発機構(JAXA), Japan Aerospace Exploration Agency (JAXA)}, title = {Multipole Analysis による超音速飛翔体の近傍場波形の改善}, volume = {JAXA-SP-13-011}, year = {2014} }