2010 Fiscal Year Final Research Report
Imaging Analysis of Turbomachinery Internal Flows Using Pressure and Temperature Sensitive Paints
| Project/Area Number |
21760134
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Fluid engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
MORI Hideo Kyushu University, 大学院・工学研究院, 准教授 (70362275)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 感圧塗料 / 感温塗料 / ターボ機械 |
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| Research Abstract |
We have developed a dual-layer pressure sensitive paint (PSP)/temperature sensitive paint (TSP) for measurement of low-speed flows with low gauge pressure. Because PSP and TSP enable non-intrusive imaging measurement, application of the technique to measurement of internal flows related to turbomachinery for industrial and home use is strongly desired. However, problems of PSP related to low pressure sensitivity in low gauge pressure and measurement error caused by non-uniform temperature distribution must be solved for application of PSP in low gauge pressure conditions. Dual-layer PSP/TSP enables the temperature compensation of the PSP component by using temperature distribution measured by the TSP component. In this study, small pressure difference as 800Pa on a flat plate with non-uniform temperature distribution with the difference of 0.4 deg C interacting with a low-speed jet can be visualized quantitatively by using the dual-layer PSP/TSP.
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