A swirling jet with vortex breakdown: three-dimensional coherent structures; Thermophysics and Aeromechanics; Vol. 23, iss. 2
| Parent link: | Thermophysics and Aeromechanics Vol. 23, iss. 2.— 2016.— [P. 301–304] |
|---|---|
| Institutionell upphovsman: | |
| Övriga upphovsmän: | , , , |
| Sammanfattning: | Title screen The paper reports on shape of a three-dimensional coherent structure in a velocity field of a high-swirl turbulent jet with the bubble-type vortex breakdown. A set of the 3D instantenous velocity fields was measured by using the tomographic particle image velocimetry (tomographic PIV) technique and processed by the proper orthogonal decomposition (POD) method. The detected intensive coherent velocity component corresponded to a helical vortex core of the swirling jet and two secondary spiral vortices. The entire coherent structure was rotating around the jet axis in compliance with the direction of the flow swirl. From the 3D data it is concluded that the dynamics of the strsucture can be described by a traveling wave equation: Re[A(y, r)·ei(mθ + ky - ωt)] with the number of the spiral mode m = +1 for positively defined k and ω. Режим доступа: по договору с организацией-держателем ресурса |
| Språk: | engelska |
| Publicerad: |
2016
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| Ämnen: | |
| Länkar: | http://dx.doi.org/10.1134/S0869864316020189 |
| Materialtyp: | Elektronisk Bokavsnitt |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=654720 |
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| 200 | 1 | |a A swirling jet with vortex breakdown: three-dimensional coherent structures |f S. V. Alekseenko [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: p. 304 (8 tit.)] | ||
| 330 | |a The paper reports on shape of a three-dimensional coherent structure in a velocity field of a high-swirl turbulent jet with the bubble-type vortex breakdown. A set of the 3D instantenous velocity fields was measured by using the tomographic particle image velocimetry (tomographic PIV) technique and processed by the proper orthogonal decomposition (POD) method. The detected intensive coherent velocity component corresponded to a helical vortex core of the swirling jet and two secondary spiral vortices. The entire coherent structure was rotating around the jet axis in compliance with the direction of the flow swirl. From the 3D data it is concluded that the dynamics of the strsucture can be described by a traveling wave equation: Re[A(y, r)·ei(mθ + ky - ωt)] with the number of the spiral mode m = +1 for positively defined k and ω. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Thermophysics and Aeromechanics | ||
| 463 | |t Vol. 23, iss. 2 |v [P. 301–304] |d 2016 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a swirling jet | |
| 610 | 1 | |a vortex core breakdown | |
| 610 | 1 | |a coherent mode | |
| 610 | 1 | |a tomographic PIV | |
| 610 | 1 | |a POD | |
| 701 | 1 | |a Alekseenko |b S. V. |c specialist in the field of energy |c Professor-consultant of Tomsk Polytechnic University, doctor of physical and mathematical Sciences |f 1950- |g Sergey Vladimirovich |3 (RuTPU)RU\TPU\pers\35088 | |
| 701 | 1 | |a Dulin |b V. M. | |
| 701 | 1 | |a Tokarev |b M. P. | |
| 701 | 1 | |a Markovich |b D. M. |c specialist in the field of energy |c Professor of Tomsk Polytechnic University, doctor of physical and mathematical Sciences |f 1962- |g Dmitry Markovich |3 (RuTPU)RU\TPU\pers\35068 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет (ТПУ) |b Энергетический институт (ЭНИН) |b Кафедра парогенераторостроения и парогенераторных установок (ПГС и ПГУ) |3 (RuTPU)RU\TPU\col\18681 |
| 801 | 2 | |a RU |b 63413507 |c 20171108 |g RCR | |
| 856 | 4 | |u http://dx.doi.org/10.1134/S0869864316020189 | |
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