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Open Access Issue
Design of an aerodynamic experimental teaching platform for wind energy drag reduction based on the magnus effect
Experimental Technology and Management 2026, 43(6): 257-263
Published: 20 June 2026
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Objective

Under the “New Engineering Education” initiative, traditional fluid mechanics and aerodynamics experimental pedagogy faces challenges, such as insufficient integration with engineering practice, an overemphasis on verification-based experiments, and limited comprehensiveness and innovation. To address these issues, this study designs and develops an aerodynamic experimental teaching platform for wind-assisted drag reduction devices based on the Magnus effect. Centered on rotor wind tunnel experiments, the modular experimental platform integrates fluid mechanics theory, aerodynamic measurement techniques, and ship drag reduction engineering applications. This framework enables the systematic investigation of the aerodynamic characteristics and flow interference phenomena of rotating cylinders at varying inflow velocities, spin ratios, and rotor arrangements, providing intuitive and efficient experimental support for teaching complex aerodynamic mechanisms.

Methods

Regarding system design, the platform’s architecture integrates a variable-speed rotating cylinder device, a multicomponent force balance, rotational and wind speed measurement units, and a data acquisition and processing system. It enables the synchronous measurement of lift, drag, and aerodynamic torque with good stability and repeatability. Systematic experiments are conducted on single-and dual-rotor configurations to obtain aerodynamic response characteristics across different parameter combinations. Results demonstrate that the platform effectively clarifies the physical mechanism of rotation-induced lift within the Magnus effect, as well as the influence of inter-rotor flow interference on aerodynamic performance, providing reliable experimental evidence for wind-assisted propulsion and ship drag reduction applications.

Results

Pedagogically, the platform is incorporated into fluid mechanics and ship engineering–related courses through a three-level experimental framework comprising fundamental verification, parametric analysis, and engineering extension. This approach guides students progressively from theoretical understanding to engineering application. Through these experiments, students systematically master wind tunnel diagnostics, rotating system control, multicomponent force measurement, data processing, and uncertainty analysis, significantly enhancing their experimental design proficiency, engineering intuition, and teamwork. Moreover, integrating research-oriented problems into experimental curriculum exposes students to complex nonlinear flows and engineering optimizations, stimulating their interest in cutting-edge technologies and innovative research.

Conclusions

Overall, the proposed experimental teaching platform effectively integrates “research-driven teaching and teaching-supported research,” enhancing the depth, challenge, and engineering orientation of experimental education while providing strong support for cultivating innovative and well-rounded engineering talents in ship and ocean engineering, as well as related disciplines. The study indicates that the platform has strong demonstrative significance and broad applicability for experimental curriculum development and engineering education reform under the New Engineering Education framework.

Ship Design and Performance Issue
Research progress on the wake of underwater vehicles
Chinese Journal of Ship Research 2026, 21(2): 266-277
Published: 29 September 2025
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The wake characteristics of underwater vehicles during navigation are influenced by factors such as the intensity of ocean stratification, free surface effects, and unsteady motion, making them detectable and posing challenges to their stealth. This paper systematically reviews the latest research progress on underwater vehicle wakes, focusing on three key aspects: theoretical modeling, experimental research, and numerical simulation. It discusses the wake generation mechanisms, evolution patterns, and key influencing factors in stratified flows, highlighting the limitations of existing models in describing complex stratified structures, nonlinear effects, and turbulent dissipation. The paper proposes the future development of high-precision coupled models, multi-physics experimental databases, and intelligent wake control algorithms. Additionally, it explores the current state and future directions of wake detection and suppression technologies, aiming to provide insights for optimizing underwater vehicle design, enhancing stealth capabilities, and advancing efficient detection technologies.

Issue
Review of research on ship flow field measurement technology
Chinese Journal of Ship Research 2022, 17(5): 103-115
Published: 21 September 2022
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The refined description of the flow field information around a ship can provide feedback on the internal essence of the ship's macroscopic hydrodynamic performance from the perspective of the flow mechanism, and high-quality flow field measurement technology is a necessary means of ensuring such a refined description of the flow field. Based on the engineering requirements of ship flow field measurement, the current development status of flow field measurement technology is summarized according to its technical characteristics, and the applications and characteristics of each method are described in detail. The existing flow field measurement methods still have many problems that need to be solved. The exploration of hardware upgrading, technology integration, algorithm optimization, function expansion, data assimilation and machine learning may promote the rapid development of flow field measurement technology in the direction of comprehensiveness, specialization and efficiency.

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