| Project/Area Number |
26550002
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Environmental dynamic analysis
|
|---|
| Research Institution | Hokkaido University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
SHIMOYAMA Kou 北海道大学, 低温科学研究所, 助教 (50391115)
|
|---|
| Project Period (FY) |
2014-04-01 – 2016-03-31
|
| Project Status |
Completed (Fiscal Year 2015)
|
| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
|
|---|
| Keywords | PIV / 乱流 / 接地境界層 / 空間構造 / その場観測 / 流れの可視化 / 可視化 |
|---|
| Outline of Final Research Achievements |
This study aimed at developing a new technique for in-situ measurements of turbulence spatial structures in the stable boundary layers. A PIV method was introduced to measure turbulence velocities in outdoor conditions. Main achievements include the following. (1) A specially designed seeding device was developed to supply tracer particles into a large area of measurements in the field. (2) A parallelized computer software was compiled to efficiently calculate velocities through perspective transformation and cross-correlations of images taken at an oblique angle. (3) Field tests confirmed that the developed PIV system was able to measure turbulence velocities as accurate as sonic anemometers.
|
