2017 Fiscal Year Final Research Report
Establishment of the generation method of air-coated abrasive suspension jet under submerged condition
| Project/Area Number |
26420124
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Fluid engineering
|
|---|
| Research Institution | Nihon University |
|---|
Principal Investigator |
PENG Guoyi 日本大学, 工学部, 教授 (90295527)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
清水 誠二 日本大学, 工学部, 教授 (80154293)
|
|---|
| Research Collaborator |
TRYGGVASON Greater
OGUMA Yasuyuki
NISHIKATA Hironori
ISHIZAKI Kenji
OKADA Kunihiro
ITO Takayuki
WAKUI Ayaka
|
|---|
| Project Period (FY) |
2014-04-01 – 2018-03-31
|
| Keywords | ウォータージェット / 混相流 / キャビテーション / 気泡流 / 可視化計測 / 数値解析 |
|---|
| Outline of Final Research Achievements |
The cutting method of underwater structures is essential to dismantle a nuclear plant decided on decommissioning such as Fukushima Daiichi Nuclear Power Station. However, when the Abrasive Suspension Jet (ASJ, hereafter) technology is applied the processing capability quickly declines with increase of standoff distance. In order to enhance the performance of ASJ, the method to generate air-coated ASJ by using sheathed nozzle with ventilation is established in this work, and the effects of sheath dimension and ventilation air flow rate are examined through flow analysis and material cutting tests.
|
| Free Research Field |
流体工学
|
