Thermal Analyses of Active-Cooled Strut in RBCC Engine
Fuel-injection strut is an efficient way to increase the depth of fuel penetration and strengthen the mixing process of hot gas in supersonic combustor. With a validated numerical model, this article analyzed the effects of leading edge's radius, wall thickness and mass flow distribution on coo...
| Format: | Article |
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| Language: | zho |
| Published: |
EDP Sciences
2018-10-01
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| Series: | Xibei Gongye Daxue Xuebao |
| Subjects: | |
| Online Access: | https://www.jnwpu.org/articles/jnwpu/pdf/2018/05/jnwpu2018365p919.pdf |
| _version_ | 1797427604465123328 |
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| collection | DOAJ |
| description | Fuel-injection strut is an efficient way to increase the depth of fuel penetration and strengthen the mixing process of hot gas in supersonic combustor. With a validated numerical model, this article analyzed the effects of leading edge's radius, wall thickness and mass flow distribution on cooling efficiency of fuel-injection strut and proposed an optimizing strategy for active-cooled strut. Results showed that the larger radius of leading edge not only decreased the heat flux on the leading edge, but also has a negative effect on the aerodynamic performance of strut; and a thinner wall could enhance the cooling efficiency and uniformize the temperature distribution of the wedge; furthermore, the flow distribution of inlet coolant had a significant impact on the heat transfer and flow processes, an optimized way of flow distribution was obtained by comparing three different ways of distribution. |
| first_indexed | 2024-03-09T08:46:18Z |
| format | Article |
| id | doaj.art-e13c400ac2ca43a097da9c11ec488938 |
| institution | Directory Open Access Journal |
| issn | 1000-2758 2609-7125 |
| language | zho |
| last_indexed | 2024-03-09T08:46:18Z |
| publishDate | 2018-10-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Xibei Gongye Daxue Xuebao |
| spelling | doaj.art-e13c400ac2ca43a097da9c11ec4889382023-12-02T15:16:36ZzhoEDP SciencesXibei Gongye Daxue Xuebao1000-27582609-71252018-10-0136591992510.1051/jnwpu/20183650919jnwpu2018365p919Thermal Analyses of Active-Cooled Strut in RBCC Engine012345Science and Technology on Combustion, Internal Flow and Thermo-Structure Laboratory, School of Astronautics, Northwestern Polytechnical UniversityScience and Technology on Combustion, Internal Flow and Thermo-Structure Laboratory, School of Astronautics, Northwestern Polytechnical UniversityScience and Technology on Combustion, Internal Flow and Thermo-Structure Laboratory, School of Astronautics, Northwestern Polytechnical UniversityScience and Technology on Combustion, Internal Flow and Thermo-Structure Laboratory, School of Astronautics, Northwestern Polytechnical UniversityScience and Technology on Combustion, Internal Flow and Thermo-Structure Laboratory, School of Astronautics, Northwestern Polytechnical UniversityScience and Technology on Combustion, Internal Flow and Thermo-Structure Laboratory, School of Astronautics, Northwestern Polytechnical UniversityFuel-injection strut is an efficient way to increase the depth of fuel penetration and strengthen the mixing process of hot gas in supersonic combustor. With a validated numerical model, this article analyzed the effects of leading edge's radius, wall thickness and mass flow distribution on cooling efficiency of fuel-injection strut and proposed an optimizing strategy for active-cooled strut. Results showed that the larger radius of leading edge not only decreased the heat flux on the leading edge, but also has a negative effect on the aerodynamic performance of strut; and a thinner wall could enhance the cooling efficiency and uniformize the temperature distribution of the wedge; furthermore, the flow distribution of inlet coolant had a significant impact on the heat transfer and flow processes, an optimized way of flow distribution was obtained by comparing three different ways of distribution.https://www.jnwpu.org/articles/jnwpu/pdf/2018/05/jnwpu2018365p919.pdfstrutactive-coolingnumerical simulationflow distribution |
| spellingShingle | Thermal Analyses of Active-Cooled Strut in RBCC Engine Xibei Gongye Daxue Xuebao strut active-cooling numerical simulation flow distribution |
| title | Thermal Analyses of Active-Cooled Strut in RBCC Engine |
| title_full | Thermal Analyses of Active-Cooled Strut in RBCC Engine |
| title_fullStr | Thermal Analyses of Active-Cooled Strut in RBCC Engine |
| title_full_unstemmed | Thermal Analyses of Active-Cooled Strut in RBCC Engine |
| title_short | Thermal Analyses of Active-Cooled Strut in RBCC Engine |
| title_sort | thermal analyses of active cooled strut in rbcc engine |
| topic | strut active-cooling numerical simulation flow distribution |
| url | https://www.jnwpu.org/articles/jnwpu/pdf/2018/05/jnwpu2018365p919.pdf |