Takeaki MURAMATSU, Yosuke KUROSAKA, Kohei SHIMAMURA, Akira KAKAMI, Hiroshi KATSURAYAMA

DOI Number: XXX-YYY-ZZZ

Conference number: HiSST2024-00226

In this paper, a magnetic circuit is designed for an Magnetohydrodynamic aerobraking experiment in a hypersonic wind tunnel (expansion tube). The magnetic circuit is composed of a magnetic field generating coil, a Pulse Forming Network (PFN) that serves as the power source, and a drive circuit consisting mainly of IGBT. The magnetic field generating coil was fabricated with a length l = 8.5 mm and an inner diameter di = 12 mm, and the PFN consists of a capacitor (730 μF) and a coil (7.0 μH). The magnetic field generating coil is supplied with a maximum of 1 kA for a short period of about 200 µs. In this study, we verified the operation of the driving circuit and measured the magnetic field of the magnetic field generating coil. As a result, it was confirmed that the drive circuit drives the magnetic circuit within 1.27 ms from the trigger signal. The magnetic field generated from the magnetic field generating coil was obtained to be approximately 1.4 T at the model surface location.

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In Categories: 1.Events, High-Speed Aerodynamics and Aerothermodynamics, HiSST 2024
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