Study on the supersonic flows inside and outside a micronozzle using LIF and MTV
Project/Area Number |
24560198
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Fluid engineering
|
Research Institution | Kyushu University |
Principal Investigator |
HANDA Taro 九州大学, 総合理工学研究科(研究院), 准教授 (30284566)
|
Project Period (FY) |
2012-04-01 – 2015-03-31
|
Project Status |
Completed (Fiscal Year 2014)
|
Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
|
Keywords | マイクロ流れ / 超音速流れ / 圧縮性流れ / レーザー誘起蛍光法 / 分子タグ法 / マイクロ噴流 / 超音速噴流 / LIF / MTV / 噴流 |
Outline of Final Research Achievements |
In the present study, the characteristics of supersonic flows in a rectangular micronozzle were investigated using the LIF (Laser-Induced Fluorescence) and MTV (Molecular Tagging Velocimetry) techniques, both of which are a non-intrusive technique for measuring supersonic flows. The results demonstrated that the supersonic core of the jet issuing from the micronozzle is extended remarkably and becomes 60~70 times longer than the nozzle exit height at a certain operating condition. The results also demonstrated that the phenomenon peculiar to supersonic micro flows occur in the micronozzle; that is to say, the density distributions measured in the nozzle cannot be explained by the concept that has been believed.
|
Report
(4 results)
Research Products
(31 results)