Simulation of Torpedo Combustion Chamber Thermal-Fluid-Solid Coupling Heat Transfer

CHEN Ken; FENG Yaofei; ZONG Xiao; YI Jinbao; XIAO Yanbin; SHI Xiaofeng

doi:10.11993/j.issn.2096-3920.2022-0004

Volume 31 Issue 3

Jun 2023

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Article Navigation > Journal of Unmanned Undersea Systems > 2023 > 31(3): 442-450

CHEN Ken, FENG Yaofei, ZONG Xiao, YI Jinbao, XIAO Yanbin, SHI Xiaofeng. Simulation of Torpedo Combustion Chamber Thermal-Fluid-Solid Coupling Heat Transfer[J]. Journal of Unmanned Undersea Systems, 2023, 31(3): 442-450. doi: 10.11993/j.issn.2096-3920.2022-0004

Citation:

CHEN Ken, FENG Yaofei, ZONG Xiao, YI Jinbao, XIAO Yanbin, SHI Xiaofeng. Simulation of Torpedo Combustion Chamber Thermal-Fluid-Solid Coupling Heat Transfer[J]. Journal of Unmanned Undersea Systems, 2023, 31(3): 442-450. doi: 10.11993/j.issn.2096-3920.2022-0004

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Simulation of Torpedo Combustion Chamber Thermal-Fluid-Solid Coupling Heat Transfer

doi: 10.11993/j.issn.2096-3920.2022-0004

The 705 Research Institute, China State Shipbuilding Corporation Limited, Xi’an 710077, China

Received Date: 2022-07-05
Accepted Date: 2022-08-10
Rev Recd Date: 2022-08-02

Available Online: 2023-05-26

Abstract

Abstract

To improve the cooling heat transfer performance of torpedo combustion chambers, a numerical simulation of the thermal-fluid-solid cooling heat transfer process in a torpedo combustion chamber was performed based on the thermal-fluid-solid coupling numerical calculation method. The flow field distribution was obtained under two types of cooling water channel structures in the combustion chamber, and the cooling heat transfer performance under these different water channel structures was analyzed. The results indicated that, with an increase in the number of the water channels at the bottom of cooling area, the turbulent intensity decreased, and size of the local overheating area reduced. With an increase in the number of outlet water channels at the bottom of the cooling area, the turbulence, vortex, and local overheating area at the outlet gradually disappeared, and the block flow at the bottom of the cooling area caused by water impact also disappeared. Furthermore, the heat transfer efficiency was improved by increasing the number of water channels, with a larger number of water channels at the bottom yielding better improvement in the heat transfer efficiency. Increasing the number of water channels in the combustion chamber raised the cooling heat transfer power about 8.5%, and the maximum temperature of the shell decreased by 11 K. The results of this study can provide a reference for the design and improvement of the cooling structure of torpedo combustion chambers.
- torpedo,
- combustion chamber,
- thermal-fluid-solid coupling,
- heat transfer performance

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References(12)

References

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