Numerical simulation of gas flow field in supersonic swirler

被引：0

作者：

Liu Y. ^{[1
]}

Ding C. ^{[1
]}

Sun W. ^{[1
]}

Jiang K. ^{[1
]}

Huang Y. ^{[1
]}

机构：

[1] School of Mechanical and Automatic Control, Zhejiang University of Science and Technology, Hangzhou

来源：

Hangkong Dongli Xuebao/Journal of Aerospace Power | 2023年 / 38卷 / 01期

关键词：

angular momentum; front-mounted swirler; intake passage; spiral vortex; supersonic nozzle;

D O I：

10.13224/j.cnki.jasp.20210434

中图分类号：

学科分类号：

摘要：

To interrogate the effects of the swirling inlet on the supersonic nozzle flow and its characteristics， a set of front-mounted supersonic swirlers were designed on the basis of the existing swirler by simplifying the model. A three-dimensional geometric model of the swirler was established and integrated with a supersonic nozzle. The flow field of the whole system was then numerically simulated by using a computational fluid dynamics （CFD） software Fluent，and the realizable k-ε turbulence model. It was shown that when keeping the inlet total pressure constant，the maximum tangential velocity rate of the flow generated in the swirler increased with the decrease of intake passages. However，the nozzle flow clearly exhibited the characteristic of spiral vortexes. As the angular momentum decreased at the expense of the axial momentum，the increase of the tangential velocity led to the decrease of the averaged axial velocity at the nozzle exit plane. It was also discovered that when the inlet total pressure increased，the distribution of gas velocity and temperature in the converging section was close. Meanwhile， the gas velocity and Mach number increased as the static temperature decreased along the nozzle diverging section. In addition， the tangential velocity displayed almost an identical distribution across the radial direction at the nozzle exit plane. © 2023 BUAA Press. All rights reserved.

引用

页码：134 / 143

页数：9

共 18 条

[1] ARINELLI L D O, TROTTA T A F，, TEIXEIRA A M, Et al., Offshore processing of CO<sub>2</sub> rich nature gas with supersonic separator versus conventional routes, Journal of Natural Gas Science and Engineering, 46, pp. 199-221, (2017)
[2] TEIXEIRA A M, ARINELLI L D O，, MEDEIROS J L D, Et al., Recovery of thermodynamic hydrate inhibitors methanol, ethanol and MEG with supersonic separators in offshore natural gas processing, Journal of Natural Gas Science and Engineering, 52, pp. 166-186, (2018)
[3] LIU Y，, COSTIGAN G, BELLHOUSE B J., Swirling effects on the performance of the micro-particle acceleration and penetration: parametric studies, Powder Technology, 183, 2, pp. 189-195, (2007)
[4] YANG Zhiyi, Study on supersonic hydrocyclone separation of oil and gas, (2004)
[5] LIU Xingwei, LIU Zhongliang, WU Hongqiang, Analysis of the flow field in the supersonic separation tube of the hydrocyclone, Journal of Beijing University of Technology, 40, 9, pp. 1394-1401, (2014)
[6] JIANG Wenming, LIU Zhongliang, LIU Hengwei, Et al., Field test of a new supersonic natural gas dehydration and purification plant, Natural Gas Industry, 2, pp. 136-138, (2008)
[7] HU Shijun, Study on gas separation performance of vortex tube with supersonic inlet nozzles, (2009)
[8] JASSIM E, ABDI M A, MUZYCHKA Y., Computational fluid dynamics study for flow of natural gas through high-pressure supersonic nozzles: Part 1 real gas effects and shockwave, Petroleum Science and Technology, 26, 15, pp. 1757-1772, (2008)
[9] JASSIM E, ABDI M A, MUZYCHKA Y., Computational fluid dynamics study for flow of natural gas through high-pressure supersonic nozzles: Part 2 nozzle geometry and vorticity, Petroleum Science and Technology, 26, 15, pp. 1773-1785, (2008)
[10] LIU Y, KENDALL M A F., Optimization of a jet-propelled particle injection system for the uniform transdermal delivery of drug/vaccine, Biotechnology and Bioengineering, 97, 5, pp. 1300-1308, (2007)

← 1 2 →