An experimental study of non-equilibrium vapour condensation in a shock-tube |
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| Authors: | M Maerefat S Fujikawa T Akamatsu T Goto T Mizutani |
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| Institution: | 1. Dept. of Mechanical Engineering, Kyoto University, 606, Kyoto, Japan
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| Abstract: | Filmwise non-equilibrium condensation of methanol vapour is investigated on a shock-tube endwall behind a reflected shock wave. The theoretical prediction of a transition phenomenon during the growth of a liquid film is experimentally demonstrated: the film grows approximately in proportion to the time at the early stages after the reflection of the shock wave and, after a transition period, it grows in proportion to the square root of the time. The condensation parameter of the vapour is obtained from the conformity between experiment and theory. It is found that the condensation parameter of the methanol vapour is of the magnitude of one tenth of the value for the complete capture of the molecules on the liquid surface. |
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