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- W2008150656 abstract "To investigate the aerothermodynamic phenomena around an icy meteorite entering the atmosphere, a series of experiments have been conducted by putting a spherical ice piece in the test section of the hypersonic wind tunnel in Kashiwa campus, the University of Tokyo. The ablation, spallation, and fragmentation of an icy object are successfully simulated and observed in the Mach number 7 flow. The liquid water and the vapor produced under the severe aerodynamic heating in the stagnation region go downstream over the surface and are refrozen into icy columns in the shoulder region, forming a brimlike structure. The IR camera images clarify that the surface temperature of the icy body is kept around 273 K in the hypersonic flow due to the latent heat of the ablation. The high-speed movie reveals that small ice pieces are spalled at the tips of the icy columns. The fragmentation of the object is initiated by the removal of icy columns from the body. It is observed that a large amount of mist is injected from the surface just before the fragmentation. These results will become useful for the discussion on the survivability of the meteorite in the atmosphere and the possibility of the delivery of the extraterrestrial material into the atmosphere during its entry flight." @default.
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- W2008150656 date "2011-01-01" @default.
- W2008150656 modified "2023-10-16" @default.
- W2008150656 title "VISUALIZATION OF ABLATION AND SPALLATION OF ICY OBJECT IN HYPERSONIC FLOW AT MACH NUMBER 7" @default.
- W2008150656 doi "https://doi.org/10.1615/vismechproc.v1.i3.100" @default.
- W2008150656 hasPublicationYear "2011" @default.
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