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Symmetry
Volume 17
Issue 2
10.3390/sym17020193
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Simulation Study on the Navigation Resistance and Shape Optimization of a New Type of Amphibious Vehicle

by
Jiawen Fan
1,
Ying Chang
1,*,
Hui Zhu
2,
Beibei Wan
1,
Jian Ye
3,
Shanhu Zhang
3 and
Changwei Jin
4
1
Institute for Disaster Management and Reconstruction, Sichuan University-The Hong Kong Polytechnic University, Chengdu 610065, China
2
Sichuan Fire Research Institute of MEM, Chengdu 610036, China
3
Fire and Rescue Department of Sichuan Province, Chengdu 610036, China
4
Beijing Topsky Intelligent Equipment Group Co., Ltd., Beijing 101102, China
*
Author to whom correspondence should be addressed.
Symmetry 2025, 17(2), 193; https://doi.org/10.3390/sym17020193
Submission received: 23 November 2024 / Revised: 8 January 2025 / Accepted: 23 January 2025 / Published: 26 January 2025
(This article belongs to the Section Engineering and Materials)
Versions Notes

Abstract

Amphibious vehicles are important equipment used by emergency rescue teams to quickly pass through water networks. A numerical model of amphibious vehicle underwater navigation in the lower shell was established in this study using computational fluid dynamics, the Reynolds-averaged Navier–Stokes model, and the volume-of-fluid method to investigate the navigation performance of a new all-terrain all-water amphibious emergency rescue vehicle. The navigation resistance was calculated at different speeds. The characteristics of the flow field around the vehicle body were analyzed, and optimization measures for drag reduction by installing a stern flap were proposed. The simulation results show that the existing vehicle body has a relatively high navigation resistance, and the flow field of the amphibious vehicle body is significantly improved after using stern flaps with larger angles and sizes. When the stern flap angle was 38°, the drag-reduction effect was 23%, which effectively improved the navigation performance of the amphibious vehicle.
Keywords: amphibious vehicle; numerical simulation; navigational drag; drag-reduction optimization amphibious vehicle; numerical simulation; navigational drag; drag-reduction optimization

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MDPI and ACS Style

Fan, J.; Chang, Y.; Zhu, H.; Wan, B.; Ye, J.; Zhang, S.; Jin, C. Simulation Study on the Navigation Resistance and Shape Optimization of a New Type of Amphibious Vehicle. Symmetry 2025, 17, 193. https://doi.org/10.3390/sym17020193

AMA Style

Fan J, Chang Y, Zhu H, Wan B, Ye J, Zhang S, Jin C. Simulation Study on the Navigation Resistance and Shape Optimization of a New Type of Amphibious Vehicle. Symmetry. 2025; 17(2):193. https://doi.org/10.3390/sym17020193

Chicago/Turabian Style

Fan, Jiawen, Ying Chang, Hui Zhu, Beibei Wan, Jian Ye, Shanhu Zhang, and Changwei Jin. 2025. "Simulation Study on the Navigation Resistance and Shape Optimization of a New Type of Amphibious Vehicle" Symmetry 17, no. 2: 193. https://doi.org/10.3390/sym17020193

APA Style

Fan, J., Chang, Y., Zhu, H., Wan, B., Ye, J., Zhang, S., & Jin, C. (2025). Simulation Study on the Navigation Resistance and Shape Optimization of a New Type of Amphibious Vehicle. Symmetry, 17(2), 193. https://doi.org/10.3390/sym17020193

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