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| Numerical Simulation of Heat Transfer Enhancement in Honeycomb Shroud |
| Received:February 21, 2013 Revised:July 01, 2013 |
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| DOI：10.7643/issn.1672-9242.2013.04.029 |
| KeyWord:shroud heat exchange enhancement honeycomb structure optimization |
| Author | Institution |
| ZHANG Lei |
Beijing Institute of Spacecraft Environment Engineering，Beijing，China |
| LIU Ran |
Beijing Institute of Spacecraft Environment Engineering，Beijing，China |
| LIU Min |
Beijing Institute of Spacecraft Environment Engineering，Beijing，China |
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| Abstract: |
| Shroud is an important part of space environment simulator. A new type of shroud with honeycomb flow passages was designed for improving the simulation of cold black space environment and satisfying the needs of spacecraft tests. A numerical simulation of inside flow and heat transfer of honeycomb shroud was done by using the theory of hydrodynamics and finite-element method, for analyzing the effect on fluid flow and heat transfer when changing the design value of flow passage to confirm the best design value. Test results showed that the surface temperature of honeycomb flow passage thermal shroud is5K lower than finned pipe thermal shroud and the temperature evenness is ±2K; the deepness and space length of flow passage are important factors effecting the fluid flow and heat transfer in thermal shroud; the best design value of honeycomb flow passage thermal shroud is that space length75mm and deepness10mm by considering the heat transfer and resistance pressure. |
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