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Bibliographic Record
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- Material Type
- 規格・テクニカルリポート類
- Author/Editor
- 足立, 憲彦小林, 宙箱島, 秀昭西沢, 啓Adachi, NorihikoKobayashi, HiroshiHakojima, HideakiNishizawa, Akira
- Author Heading
- Publication, Distribution, etc.
- Publication Date
- 2015-07-31
- Publication Date (W3CDTF)
- 2015-07-31
- Alternative Title
- An Experimental Study on Energy Regeneration Using Propellers
- Periodical title
- 宇宙航空研究開発機構研究開発報告
- No. or year of volume/issue
- JAXA-RR-15-001
- Volume
- JAXA-RR-15-001
- Pages
- 1-166
- ISSN (Periodical Title)
- ISSN : 1349-1113
- Text Language Code
- jpn
- Subject Heading
- Target Audience
- 一般
- Note (General)
- When an aircraft powered by an electrical motor (electric aircraft) with rechargeable batteries descends, it is easy to utilize wind power for charging the batteries by rotating propeller passively. In this study we examined characteristics of propeller-blades to regenerate energy in some conditions in a wind tunnel by using model-aircraft propellers and main rotor for model-helicopter. The changed conditions are follows; 1) wind speed, 2) blade diameter and 3) blade pitch angle. Based on the results of this experiment, it is found that electric aircraft can regain 10% of potential energy while descending. In addition, slipstream measurements were conducted and local drag and local thrust of blade elements were calculated. These results demonstrated that local drag is mainly generated by blade elements in r/R less than 0.6.形態: カラー図版ありPhysical characteristics: Original contains color illustrations資料番号: AA1530029000レポート番号: JAXA-RR-15-001
- Access Restrictions
- インターネット公開
- Periodical Title (NCID)
- AA1192675X
- Data Provider (Database)
- 国立情報学研究所 : 学術機関リポジトリデータベース(IRDB)(機関リポジトリ)
- Original Data Provider (Database)
- 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ