Experimental study of the unsteady thermocapillary convection in thin-film liquids by 3D-PIV technique / 薄液膜内温度差マランゴニ対流における非定常速度場の三次元計測
- Resource Type
- Journal Article
- Authors
- Kohki ITO; Koichi NISHINO; Masaki KUDO; 伊藤 興希; 工藤 正樹; 西野 耕一
- Source
- The Proceedings of Conference of Kanto Branch. 2022, :15
- Subject
- Flow transition
Oscillatory flow
Thermocapillary convention
Thin liquid film
tomographic stereo PIV
- Language
- Japanese
- ISSN
- 2424-2691
When high purity and large diameter are desired in manufacturing single crystals, defects due to “oscillatory thermocapillary” are inevitable in the crystal. The oscillatory convection is caused by “Hydrothermal wave instability”. We performed the tomographic stereo PIV on thermocapillary flows with thin liquid films for understanding the three dimensonal structure of Hydrothermal waves. As a result, the flow structure of Hydrothermal wave was captured and reconstructed sucsessfully.