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尾関 俊浩
オゼキ トシヒロ OZEKI Toshihiro 所 属 札幌校 職 名 教授 |
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| 発表年月日 | 2024/06 |
| 発表テーマ | An Investigation of Spray Icing by Urea-doped Water on a Flat Specimen in Laboratory Experiments |
| 会議名 | International Workshop on Atmospheric Icing of Structures 2024 |
| 主催者 | The Arctic University of Norway |
| 発表区分 | 学会発表 |
| 発表形式 | 口頭（一般） |
| 単独共同区分 | 共同 |
| 国名 | ノルウェー |
| 開催地名 | Narvik |
| 開催期間 | 2024/06/18～2024/06/21 |
| 種別 | 国際的又は全国的規模 |
| 発表者・共同発表者 | Toshihiro Ozeki, Takatoshi Matsuzawa, Yuka Nakamura, Satoru Adachi, Taiki Tokudome, Hayato Arakawa, Akihisa Konno |
| 概要 | Laboratory experiments on spray icing were carried out using simple-shaped test specimens. Experiments were conducted by spraying approximately 20 ‰ urea-doped water with different combinations of specimen angle and spray particle size. The air temperature in the cold room was maintained at approximately –10 °C. The wind velocity near the center of the specimen was approximately 10 m/s. Each experiment was conducted for 30 minutes, and at the end of the test, the icing weight was measured. In the early stages of icing, due to the hydrophobic feature of marine paint, the pieces of the spray ice often exfoliated. A comparison of the amount of ice per specimen area for each test showed that although a peak of icing was observed at the centerline of the spray, the amount of icing was higher at the downwind edge. Therefore, it was found that the impinging spray water flowed downwind and froze. |