한국가시화정보학회지 (Journal of the Korean Society of Visualization)

  • 제22권2호
  • /
  • Pages.44-54
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  • 2024
  • /
  • 1598-8430(pISSN)
  • /
  • 2093-808X(eISSN)
한국가시화정보학회 (The Korean Society of Visualization)
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2차원 사각주 주위 유동의 플라즈마 능동제어에 대한 연구

Active control of flow around a 2D square cylinder using plasma actuators

  • 파라스코비아 콜레소바 ;
  • 무스타파 요시프 ;
  • 임희창
  • Paraskovia Kolesova (School of Mechanical Engineering, Pusan National University) ;
  • Mustafa G. Yousif (School of Mechanical Engineering, Pusan National University) ;
  • Hee-Chang Lim (School of Mechanical Engineering, Pusan National University)
  • 투고 : 2024.05.14
  • 심사 : 2024.07.12
  • 발행 : 2024.07.31
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초록

This study investigates the effectiveness of using a plasma actuator for active control of turbulent flow around a finite square cylinder. The primary objective is to analyze the impact of plasma actuators on flow separation and wake region characteristics, which are critical for reducing drag and suppressing vortex-induced vibrations. Direct Numerical Simulation (DNS) was employed to explore the flow dynamics at various operational parameters, including different actuation frequencies and voltages. The proposed methodology employs a neural network trained using the Proximal Policy Optimization (PPO) algorithm to determine optimal control policies for plasma actuators. This network is integrated with a computational fluid dynamics (CFD) solver for real-time control. Results indicate that this deep reinforcement learning (DRL)-based strategy outperforms existing methods in controlling flow, demonstrating robustness and adaptability across various flow conditions, which highlights its potential for practical applications.

키워드

과제정보

이 과제는 부산대학교 기본연구지원사업(2년)에 의하여 연구되었음.

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