| Budget Amount *help |
¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Fiscal Year 2013: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2012: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2011: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
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| Research Abstract |
Objective of this study was to experimentally understand the nonlinear dynamics of thermally induced unstable oscillations known as thermoacoustic oscillations. When two thermoacoustic chaos oscillators are connected each other, chaos synchronization was observed for the first time in fluid system. Also when two thermoacoustic oscillators are connected via a needle valve, the oscillation was observed to stop when the frequency detuning was large. When the frequency detuning was zero, it was necessary to add a connecting tube to annihilate the oscillation. The evolution equation was experimentally derived which was able to describe oscillatory dynamics near the bifurcation point.
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