書誌事項
- タイトル別名
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- 2103 Optimum Layout of Vortex Generators for Upper Surface of Wing Based on Efficient Global Optimization
抄録
The "buffet" which is the shock wave vibration on the wing at transonic speed has influence to the aerodynamic performance of the civil transport. It is significant because the wing cannot maintain its aerodynamic performance and it is also led to the stall. Therefore, several researches on the suppression of the buffet are carried out. A Vortex Generator (VG) is one of the way which can improve to the transonic buffet. It is simple device and widely applied to the commercial airplane. Conventionally, VGs are installed along the wing span. However, they increase the friction and the instruction drag. Thus, the number of VGs should not by beyond the minimum necessary. Another problem is that it is still expensive for the computational fluid dynamics to simulate the small size vortex accurately. Therefore, the optimization procedure of the VGs installation is developed with directly combining the wind tunnel evaluation result. To reduce the number of experimentations, the surrogate model based GA exploration is employed. The design objective is to maintain the linearity of the variation lift with changing angle of attack (lift curve), because the stall is appeared if the curvature of the lift curves become smaller. Eight initial designs are evaluated and five design samples are acquired. As this result, optimum samples can be explored with reducing the number of the experiment. Several samples successfully prevent the stall without increasing the drag. In addition, the design knowledge can be obtained regarding the optimum VG's layout by visualization of the frequency distribution.
収録刊行物
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- 設計工学・システム部門講演会講演論文集
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設計工学・システム部門講演会講演論文集 2014.24 (0), _2103-1_-_2103-9_, 2014
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390282680868703616
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- NII論文ID
- 110009938823
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- ISSN
- 24243078
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
