Deep Reinforcement Learning in Action: Real-Time Control of Vortex-Induced Vibrations Article Swipe

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Hussam Sababha , Bernat Font , Mohammed F. Daqaq ·

YOU? · · 2025 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2509.24556

This study showcases an experimental deployment of deep reinforcement learning (DRL) for active flow control (AFC) of vortex-induced vibrations (VIV) in a circular cylinder at a high Reynolds number (Re = 3000) using rotary actuation. Departing from prior work that relied on low-Reynolds-number numerical simulations, this research demonstrates real-time control in a challenging experimental setting, successfully addressing practical constraints such as actuator delay. When the learning algorithm is provided with state feedback alone (displacement and velocity of the oscillating cylinder), the DRL agent learns a low-frequency rotary control strategy that achieves up to 80% vibration suppression which leverages the traditional lock-on phenomenon. While this level of suppression is significant, it remains below the performance achieved using high-frequency rotary actuation. The reduction in performance is attributed to actuation delays and can be mitigated by augmenting the learning algorithm with past control actions. This enables the agent to learn a high-frequency rotary control strategy that effectively modifies vortex shedding and achieves over 95% vibration attenuation. These results demonstrate the adaptability of DRL for AFC in real-world experiments and its ability to overcome instrumental limitations such as actuation lag.

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/2509.24556
PDF: https://arxiv.org/pdf/2509.24556
OA Status: green
OpenAlex ID: https://openalex.org/W4415336947

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OpenAlex ID: https://openalex.org/W4415336947

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DOI: https://doi.org/10.48550/arxiv.2509.24556

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Title: Deep Reinforcement Learning in Action: Real-Time Control of Vortex-Induced Vibrations

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Type: preprint

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Language: en

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Publication year: 2025

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Publication date: 2025-09-29

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Authors: Hussam Sababha, Bernat Font, Mohammed F. Daqaq

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Landing page: https://arxiv.org/abs/2509.24556

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PDF URL: https://arxiv.org/pdf/2509.24556

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Open access: Yes

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OA status: green

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OA URL: https://arxiv.org/pdf/2509.24556

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Cited by: 0

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