Unstart Coupling Mechanism Analysis of Multiple-Modules Hypersonic Inlet
The combination of multiplemodules in parallel manner is an important way to achieve the much higher thrust of scramjet engine. For the multiple-modules scramjet engine, when inlet unstarted oscillatory flow appears in a single-module engine due to high backpressure, how to interact with each module...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/254376 |
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| author | Jichao Hu Juntao Chang Lei Wang Shibin Cao Wen Bao |
| author_facet | Jichao Hu Juntao Chang Lei Wang Shibin Cao Wen Bao |
| author_sort | Jichao Hu |
| collection | DOAJ |
| description | The combination of multiplemodules in parallel manner is an important way to achieve the much higher thrust of scramjet engine. For the multiple-modules scramjet engine, when inlet unstarted oscillatory flow appears in a single-module engine due to high backpressure, how to interact with each module by massflow spillage, and whether inlet unstart occurs in other modules are important issues. The unstarted flowfield and coupling characteristic for a three-module hypersonic inlet caused by center module II and side module III were, conducted respectively. The results indicate that the other two hypersonic inlets are forced into unstarted flow when unstarted phenomenon appears on a single-module hypersonic inlet due to high backpressure, and the reversed flow in the isolator dominates the formation, expansion, shrinkage, and disappearance of the vortexes, and thus, it is the major factor of unstart coupling of multiple-modules hypersonic inlet. The coupling effect among multiple modules makes hypersonic inlet be more likely unstarted. |
| format | Article |
| id | doaj-art-4edf30a2c0ba4ddfb11a8bc2998cdd2a |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-4edf30a2c0ba4ddfb11a8bc2998cdd2a2025-02-03T01:30:45ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/254376254376Unstart Coupling Mechanism Analysis of Multiple-Modules Hypersonic InletJichao Hu0Juntao Chang1Lei Wang2Shibin Cao3Wen Bao4School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaAcademy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaThe combination of multiplemodules in parallel manner is an important way to achieve the much higher thrust of scramjet engine. For the multiple-modules scramjet engine, when inlet unstarted oscillatory flow appears in a single-module engine due to high backpressure, how to interact with each module by massflow spillage, and whether inlet unstart occurs in other modules are important issues. The unstarted flowfield and coupling characteristic for a three-module hypersonic inlet caused by center module II and side module III were, conducted respectively. The results indicate that the other two hypersonic inlets are forced into unstarted flow when unstarted phenomenon appears on a single-module hypersonic inlet due to high backpressure, and the reversed flow in the isolator dominates the formation, expansion, shrinkage, and disappearance of the vortexes, and thus, it is the major factor of unstart coupling of multiple-modules hypersonic inlet. The coupling effect among multiple modules makes hypersonic inlet be more likely unstarted.http://dx.doi.org/10.1155/2013/254376 |
| spellingShingle | Jichao Hu Juntao Chang Lei Wang Shibin Cao Wen Bao Unstart Coupling Mechanism Analysis of Multiple-Modules Hypersonic Inlet The Scientific World Journal |
| title | Unstart Coupling Mechanism Analysis of Multiple-Modules Hypersonic Inlet |
| title_full | Unstart Coupling Mechanism Analysis of Multiple-Modules Hypersonic Inlet |
| title_fullStr | Unstart Coupling Mechanism Analysis of Multiple-Modules Hypersonic Inlet |
| title_full_unstemmed | Unstart Coupling Mechanism Analysis of Multiple-Modules Hypersonic Inlet |
| title_short | Unstart Coupling Mechanism Analysis of Multiple-Modules Hypersonic Inlet |
| title_sort | unstart coupling mechanism analysis of multiple modules hypersonic inlet |
| url | http://dx.doi.org/10.1155/2013/254376 |
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