| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
|
|---|
| Outline of Final Research Achievements |
Rainbow schlieren deflectometry combined with the computed tomography have been applied for shock-containing free jets issued from supersonic nozzles with a design Mach number of 1.5 to obtain three-dimensional density fields in the jets with high spatial resolution and accuracy. Two types of nozzle configurations were tried in the present experiment: One is an axisymmetric supersonic nozzle in which the nozzle has 1 mm diameter or 10 mm diameter at the exit. The other is a square supersonic nozzle in which the nozzle has a cross-sectional area of 1 mm x 1mm or 10 mm x 10 mm at the nozzle exit. Experiments have been performed for nozzle pressure ratios to produce shock-containing free jets. Also, jet density fields were soloved using the vortex sheet theory and the RANS equations. As a result, it is shown that the rainbow schlieren deflectometry is a useful tool for studying the three-dimensional structure of shock containing free jets.
|
