Behavior of ice in a hypersonic flow

Behavior of Ice in a Hypersonic Flow Imamura, O.*, Watanuki, T.* and Suzuki, K.* *1 Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba, 277-8561, Japan. E-mail: imamura@daedalus.k.u-tokyo.ac.jp *2 Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan. Received 19 February 2008 and Revised 27 August 2008 Behavior of a piece of water ice was experimentally observed in a flow of the hypersonic wind tunnel to obtain an analogy with the flow around a comet entering the earth’s atmosphere at hypersonic speed, which will experience both the aerodynamic pressure and heating.