抄録
A chemical flow control method using functional chemical is discussed. The method uses functional chemicals, which have hydrophobic and hydrophilic characteristics. A passive flow control of this method is shown by coating these chemicals separately on a control surface. Drop tests of an ogive shape model in water tower show that combinations of hydrophobic and hydrophilic coatings vary the speed in dropping direction by the maximum 22%. By controlling the coating area and coating location, intermediate speeds are obtained. As an active flow control, a temperature-sensitive micelle polymer is shown. This polymer is hydrophobic at higher temperature, while it is hydrophilic at lower temperature. The temperature range tested is from 25°C to 64°C. The rate of change in contact angle is ranged from 0.9 degree/°C to 1.6 degree/°C.
| 本文言語 | English |
|---|---|
| ホスト出版物のタイトル | 46th AIAA Aerospace Sciences Meeting and Exhibit |
| 出版ステータス | Published - 2008 |
| イベント | 46th AIAA Aerospace Sciences Meeting and Exhibit - Reno, NV 継続期間: 2008 1月 7 → 2008 1月 10 |
Other
| Other | 46th AIAA Aerospace Sciences Meeting and Exhibit |
|---|---|
| City | Reno, NV |
| Period | 08/1/7 → 08/1/10 |
ASJC Scopus subject areas
- 航空宇宙工学