Against the backdrop of the rapid development of the global shipping industry and the deep advancement of “dual carbon” goals, energy transition, energy conservation, and emission reduction have become core issues in marine transportation. As a critical component of clean and renewable energy, the efficient development and utilization of wind energy are pivotal for achieving low-carbon shipping. Exhaust turbine sails, an innovative application of active suction control in marine aerodynamic propulsion, regulate boundary layer flow through active suction to enhance wind energy utilization efficiency, which has emerging as a research hotspot in the green transformation of modern shipping. This paper aims to synthesize research on exhaust turbine sails. First, based on fundamental fluid mechanics principles, it analyzes the impact of boundary layer separation on the aerodynamic characteristics of structural bodies. Second, through case studies, it summarizes flow control effects under different suction parameters. It further introduces combined blowing and suction control strategies to explore their influence on boundary layer management. Finally, it details the research progress of exhaust turbine sails, explaining their core principle: active suction control delays or prevents boundary layer separation, effectively suppressing vortex shedding, thereby significantly reducing ship navigation resistance and enhancing lift. The study reveals that the aerodynamic performance of exhaust turbine sails is jointly influenced by oncoming flow conditions, suction power, and structural parameters, necessitating multi-objective optimization to achieve energy efficiency balance. The paper concludes by addressing key challenges in their marine applications and envisioning future directions for integrating these sails with emerging technologies, providing practical implications for promoting the green and low-carbon transformation of the shipping industry.

Abstract
1. Introduction
    1.1 Research Background
    1.2 Research Significance
2. Working Principle and Study on the Structure of Exhaust Turbine Sails
    2.1 Structural diagram
    2.2 Working Principle
3. Literature Review: Domestic and International Studies
    3.1 Working Principle
    3.2 Study on ASC Characteristics
    3.3 Study on Synergistic Control Characteristics of Hybrid Suction-Blowing Techniques
    3.4 Aerodynamic Performance Study of exhaust Turbine Sails
    3.5 Summary
4. Research Challenges and Future Directions
5. Conclusion
References

• Qinghan Zhang(School of Naval Architecture and Port Engineering, Shandong Jiaotong University, Weihai 264209, China)
• Haihuai Lin(School of Naval Architecture and Port Engineering, Shandong Jiaotong University, Weihai 264209, China)
• Chengmeng Sun(School of Naval Architecture and Port Engineering, Shandong Jiaotong University, Weihai 264209, China) Corresponding author