| Budget Amount *help |
¥47,320,000 (Direct Cost: ¥36,400,000、Indirect Cost: ¥10,920,000)
Fiscal Year 2010: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2009: ¥13,260,000 (Direct Cost: ¥10,200,000、Indirect Cost: ¥3,060,000)
Fiscal Year 2008: ¥27,820,000 (Direct Cost: ¥21,400,000、Indirect Cost: ¥6,420,000)
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| Research Abstract |
In the re-entering phase of space vehicle into the atmosphere strong shock wave is generated, and non-equilibrium, radiating high enthalpy flow is generated behind the shock wave. Together with the convecting heat transfer, the radiative and non-equilibrium heating from the shocked air plays an important role on the total heat flux to the vehicle. This research treats nonlinear spectroscopic measurement on the vibrational/rotational temperatures of nitrogen behind the hypervelocity shock waves from 4-7km/s by CARS method. The CARS spectroscopic signals are successfully observed by free-piston, double-diaphragm shock tube experiments, and the measured results are compared with simulated spectra to decide the temperatures by spectral matching method.
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