Numerical study of shock tube flows with homogeneous and heterogeneous condensations in rarefaction wave |
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| Authors: | Junji Nagao Shigeru Matsuo Toshiaki Setoguchi Heuy Dong Kim |
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| Affiliation: | (1) Oxford Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, OX2 6PE, UK;(2) Graduate School of Biomedical Engineering, University of New South Wales, Sydney, New South Wales, 2052, Australia;(3) Australian Institute for Bioengineering and Nanotechnology (AIBN), Queensland Bioscience Precinct, The University of Queensland, Brisbane, Queensland, 4072, Australia |
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| Abstract: | Shock tubes are devices in which the state of a gas is changed suddenly from one uniform state to another by the passage of shock and expansion waves. In the theory of ideal shock tube flow, it is customarily assumed that the unsteady expansion and shock waves generated by diaphragm rupture are a perfectly centered plane wave. However, such waves are generally not centered, or may not even by plane in practice. In the present research, the time-dependent behavior of homogeneous and heterogeneous condensation of moist air in the shock tube is investigated by using a computational fluid dynamics work. Further, the numerical and experimental studies were carried out in order to investigate the effect of the diaphragm rupture process on the flow characteristics of expansion and shock waves generated near the diaphragm. |
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| Keywords: | shock tube homogeneous condensation heterogeneous condensation diaphragm rupture |
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