| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Outline of Final Research Achievements |
Compact 8-sensor hot wire probe has been developed, in order to investigate the turbulence energy transfer mechanism. The probe has an ability to measure simultaneously all components of velocity tensor, which appears in the production term of vorticity equation.
According to the measurement in our small wind tunnel, turbulence generated by the fractal structure called Sierpinski tetrahedron has three stages of decay process. First and last stages follow the power law decay, while in-between stage follows the exponential law. It is found that this pattern can be scaled by the n-th power of number of multiplicity of fractal structure.
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