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| Experimental Study on the Active Heat Transfer Performance for Leading Edges of Metallic Model |
| Received:May 31, 2017 Revised:October 15, 2017 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2017.10.016 |
| KeyWord:active heat transfer high temperature liquid alloy leading edge profiled heater |
| Author | Institution |
| XIA Lin-shi |
Hypersonic Vehicle Thermal Protection & Insulation Technology Center, Beijing Institute of Space Long March Vehicle, Beijing , China |
| YANG Kai-wei |
Hypersonic Vehicle Thermal Protection & Insulation Technology Center, Beijing Institute of Space Long March Vehicle, Beijing , China |
| KONG Wei-xuan |
Hypersonic Vehicle Thermal Protection & Insulation Technology Center, Beijing Institute of Space Long March Vehicle, Beijing , China |
| JING Zhao |
Hypersonic Vehicle Thermal Protection & Insulation Technology Center, Beijing Institute of Space Long March Vehicle, Beijing , China |
| ZOU Yang-hui |
Hypersonic Vehicle Thermal Protection & Insulation Technology Center, Beijing Institute of Space Long March Vehicle, Beijing , China |
| YANG Chi |
Hypersonic Vehicle Thermal Protection & Insulation Technology Center, Beijing Institute of Space Long March Vehicle, Beijing , China |
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| Abstract: |
| Objective To solve the thermal protection of hypersonic vehicle rudder and wing leading edge and nosecones, etc, in severe aerodynamic thermal environment. Methods A metallic experimental model of the R=5 mm leading edge was designed and fabricated with high temperature liquid alloy according to the active heat transfer technology. A set of profiled quartz lamp heater and heat flux test model was designed and manufactured to carry out thermal environment simulation test on thermal environment on the ground. Results The metallic experimental model had transient start characteristics at 530℃ of leading edge center. The maximum radiant heat flux at the center of the leading edge and the surface was 1000 kw/m2 and 580 kw/m2 respectively. The model had the advantages of good heat conduction ability. The specimen had no medium leakage and structure damage after test, they had certain repeatability. Conclusion It can be used to further engineering design and application in combination with existing mature thermal protection technology. |
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