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| Thermal Characteristics of Heating Devices under Rotating Condition |
| Received:March 01, 2025 Revised:March 31, 2025 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2025.05.018 |
| KeyWord:heating device self-rotation velocity field temperature field global/local heating heat transfer characteristics numerical simulation |
| Author | Institution |
| QIN Jiayang |
Institute of Systems Engineering, China Academy of Engineering Physics, Sichuan Mianyang , China |
| WU Song |
Institute of Systems Engineering, China Academy of Engineering Physics, Sichuan Mianyang , China |
| BAI Yunshan |
Institute of Systems Engineering, China Academy of Engineering Physics, Sichuan Mianyang , China |
| WANG Yijun |
Institute of Systems Engineering, China Academy of Engineering Physics, Sichuan Mianyang , China |
| HUANG Long |
The 31827 Unit of PLA, China |
| HU Yupeng |
Institute of Systems Engineering, China Academy of Engineering Physics, Sichuan Mianyang , China |
| LI Minghai |
Institute of Systems Engineering, China Academy of Engineering Physics, Sichuan Mianyang , China |
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| Abstract: |
| The work aims to investigate the impact of self-rotational effects on the internal flow and heat transfer characteristics of a heating device under global and local heating conditions, so as to guide the engineering design of heating devices for environmental testing. Through numerical simulations, the distribution characteristics of the velocity and temperature fields within a self-rotating heating device under actual global and local heating conditions were examined, along with the average heat transfer performance of the heating wall. The impact of rotational effects on key technical indicators of the heating device, such as the temperature rise rate, target equilibrium temperature, and temperature non-uniformity, was analyzed. The flow velocity within the device initially weakened and then strengthened with the increasing rotational effects. At a rotation speed of 1 000 r/min, the internal air flow was suppressed by the rotational effect, while at the speed exceeding 1 000 r/min, the rotational effect promoted the internal air flow. Under global heating conditions, the temperature rise rate of the heating device ranged from 20.92 K/s to 34.43 K/s for the rotation speed ranging from 0 r/min to 10 000 r/min. The internal equilibrium temperature initially increased and then slightly decreased with the increasing rotation speed. Under local heating conditions, the temperature rise rate ranged from 3.47 K/s to 4.49 K/s, with the highest internal equilibrium temperature observed at 1 000 r/min. The temperature non-uniformity within the device became more complex due to uneven heating of the sidewalls. The design of heating devices must fully consider the impact of rotation speed on the temperature rise rate and equilibrium temperature. Additionally, larger heating areas lead to greater temperature non-uniformity within the device, which should also be addressed in the design process. |
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