| Budget Amount *help |
¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2010: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
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| Research Abstract |
Turbulent diffusion in stratified turbulence with two different molecular diffusion coefficients has been investigated by water tank experiments, numerical simulations and the rapid distortion theory. In water tank experiments, the method of reflective index matching is established, and a new shape of turbulence grid has been developed to measure the statistics of turbulence for a several times longer period than the previous studies.Then, the periodic exchange of kinetic and potential energy and the oscillation of vertical density flux could be clearly observed.
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