| Budget Amount *help |
¥25,090,000 (Direct Cost: ¥19,300,000、Indirect Cost: ¥5,790,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2016: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
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| Outline of Final Research Achievements |
Experimental and numerical methods for particle deposition in high-pressure turbines were developed. Using these methods, the deposition phenomena due to high-temperature and high-speed impingements were clarified.
In the experiments, a burner rig with kerosene as a fuel and compressed air as an oxidant was applied to make the particles collide with materials. The influences on the deposition and erosion phenomena of the velocity, angle, and temperature, which are dominant parameters, were investigated.
The deposition models were implemented in a computational fluid dynamics solver, UPACS, developed by JAXA. The numerical simulations of deposition on the stator vane in the first stage of the high-pressure turbine were conducted. The deposition pattern on the turbine vane was revealed. The effects of the particle diameter and vane surface temperature on the deposition were focused, and the surface temperature distribution, which is adequate for anti-deposition, was investigated.
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