Simulation of shear layers interaction and unsteady evolution under different double backward-facing steps
ABSTRACT: High-order accurate schemes are employed to numerically simulate the interaction of a supersonic jet and a co-directional supersonic inflow. A double backward-facing step model is proposed to investigate the interaction between the jet shear layer and the supersonic inflow shear layer. It...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-04-01
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| Series: | Theoretical and Applied Mechanics Letters |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095034920300386 |
| _version_ | 1818278135328669696 |
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| author | Fang Deng Guilai Han Zonglin Jiang |
| author_facet | Fang Deng Guilai Han Zonglin Jiang |
| author_sort | Fang Deng |
| collection | DOAJ |
| description | ABSTRACT: High-order accurate schemes are employed to numerically simulate the interaction of a supersonic jet and a co-directional supersonic inflow. A double backward-facing step model is proposed to investigate the interaction between the jet shear layer and the supersonic inflow shear layer. It is found that due to the interaction of the shear layer, a secondary jet is injected into the recirculation zone at the intersection of the two shear layers. The secondary jet produced by the interaction of the two shear layers has a periodicity because of shear layers interaction. The distinction in the shape of double backward-facing steps will induce changes in the period of the secondary jet. The analysis and discussion of the periodicity of the secondary jet are mainly focused in this letter. |
| first_indexed | 2024-12-12T23:12:37Z |
| format | Article |
| id | doaj.art-48d0e7abd3b541a4bb65b83ae7509b33 |
| institution | Directory Open Access Journal |
| issn | 2095-0349 |
| language | English |
| last_indexed | 2024-12-12T23:12:37Z |
| publishDate | 2020-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Theoretical and Applied Mechanics Letters |
| spelling | doaj.art-48d0e7abd3b541a4bb65b83ae7509b332022-12-22T00:08:33ZengElsevierTheoretical and Applied Mechanics Letters2095-03492020-04-01104224229Simulation of shear layers interaction and unsteady evolution under different double backward-facing stepsFang Deng0Guilai Han1Zonglin Jiang2State Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100049, China; School of Engineering Science, Chinese Academy of Sciences, Beijing 100049, ChinaState Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100049, China; School of Engineering Science, Chinese Academy of Sciences, Beijing 100049, China; Corresponding author. (G. Han).State Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100049, China; School of Engineering Science, Chinese Academy of Sciences, Beijing 100049, ChinaABSTRACT: High-order accurate schemes are employed to numerically simulate the interaction of a supersonic jet and a co-directional supersonic inflow. A double backward-facing step model is proposed to investigate the interaction between the jet shear layer and the supersonic inflow shear layer. It is found that due to the interaction of the shear layer, a secondary jet is injected into the recirculation zone at the intersection of the two shear layers. The secondary jet produced by the interaction of the two shear layers has a periodicity because of shear layers interaction. The distinction in the shape of double backward-facing steps will induce changes in the period of the secondary jet. The analysis and discussion of the periodicity of the secondary jet are mainly focused in this letter.http://www.sciencedirect.com/science/article/pii/S2095034920300386Shear layerInteractionUnsteady evolutionJetNumerical simulation |
| spellingShingle | Fang Deng Guilai Han Zonglin Jiang Simulation of shear layers interaction and unsteady evolution under different double backward-facing steps Theoretical and Applied Mechanics Letters Shear layer Interaction Unsteady evolution Jet Numerical simulation |
| title | Simulation of shear layers interaction and unsteady evolution under different double backward-facing steps |
| title_full | Simulation of shear layers interaction and unsteady evolution under different double backward-facing steps |
| title_fullStr | Simulation of shear layers interaction and unsteady evolution under different double backward-facing steps |
| title_full_unstemmed | Simulation of shear layers interaction and unsteady evolution under different double backward-facing steps |
| title_short | Simulation of shear layers interaction and unsteady evolution under different double backward-facing steps |
| title_sort | simulation of shear layers interaction and unsteady evolution under different double backward facing steps |
| topic | Shear layer Interaction Unsteady evolution Jet Numerical simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2095034920300386 |
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