caa a22 4500 477093779 CHVBK 20180405111521.0 cr unu---uuuuu 170330e19960801xx s 000 0 eng 10.1007/BF00190673 doi (NATIONALLICENCE)springer-10.1007/BF00190673 Flow characteristics of an underexpanded jet and its application to the study of droplet breakup [Elektronische Daten] [J. Nouri, J. Whitelaw] The jet from an axiymmetric convergent nozzle has been investigated at pressure ratios of 1.9 and 3.6 corresponding to exit Mach numbers of unity and 1.49. Velocity characteristics were measured with a laser-Doppler velocimeter and complemented by shadography which showed the structure of the expansion-compression waves. The sinuous longitudinal variations of the axial velocity are shown to be large at the higher pressure ratio with amplitudes which decreased with increasing distance from the jet exit and from the axis. The use of the jet for the quantification of droplet breakup is considered and it is evident that the higher pressure ratio requires careful consideration of the location at which a droplet is allowed to fall into the jet. Springer-Verlag, 1996 Nouri J. Thermofluids Section, Department of Mechanical Engineering, The Imperial College of Science, Technology and Medicine, SW7 2BX, London, UK aut Whitelaw J. Thermofluids Section, Department of Mechanical Engineering, The Imperial College of Science, Technology and Medicine, SW7 2BX, London, UK aut Experiments in Fluids Springer-Verlag 21/4(1996-08-01), 243-247 0723-4864 21:4<243 1996 21 348 https://doi.org/10.1007/BF00190673 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00190673 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nouri J. Thermofluids Section, Department of Mechanical Engineering, The Imperial College of Science, Technology and Medicine, SW7 2BX, London, UK aut NATIONALLICENCE 700 1- Whitelaw J. Thermofluids Section, Department of Mechanical Engineering, The Imperial College of Science, Technology and Medicine, SW7 2BX, London, UK aut NATIONALLICENCE 773 0- Experiments in Fluids Springer-Verlag 21/4(1996-08-01), 243-247 0723-4864 21:4<243 1996 21 348 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer