Experimental closed-loop flow separation control: Data- and phenomenological-driven approaches

IF 2.5 3区计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS

European Journal of Control Pub Date : 2024-07-09 DOI:10.1016/j.ejcon.2024.101082

T. Arnoult , G. Acher , V. Nowinski , P. Vuillemin , C. Briat , P. Pernod , C. Ghouila-Houri , A. Talbi , E. Garnier , C. Poussot-Vassal

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Abstract

Flow control aims at modifying a natural flow state to reach an other flow state considered as advantageous. In this paper, active feedback flow separation control is investigated with two different closed-loop control strategies, involving a reference signal tracking architecture. Firstly, a data-driven control law, leading to a linear (integral) controller is employed. Secondly, a phenomenological/model-driven approach, leading to a non-linear positive (integral) control strategy is investigated. While the former benefits of a tuning simplicity, the latter prevents undesirable effects and formally guarantees closed-loop stability. Both control approaches were validated through wind tunnel experiments of flow separation control over a movable NACA 4412 plain flap. These control laws were designed with respect to hot-film measurements, performed over the flap for different deflection angles. Both control approaches proved efficient in avoiding flow separation. The main contribution of this work stands in providing practitioners, simple but yet efficient control design methods for the flow separation phenomena. Equivalently important, a complete validation campaign data-set is also provided.

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实验性闭环水流分离控制：数据和现象驱动方法

流量控制的目的是改变自然流量状态，以达到另一种被认为有利的流量状态。本文通过两种不同的闭环控制策略，对涉及参考信号跟踪架构的主动反馈流量分离控制进行了研究。首先，采用数据驱动控制法，从而产生线性（积分）控制器。其次，研究了一种现象学/模型驱动方法，该方法导致了一种非线性正（积分）控制策略。前者的优点是调整简单，而后者则能防止不良影响，并从形式上保证闭环稳定性。通过对可移动 NACA 4412 平滑襟翼的气流分离控制进行风洞实验，对这两种控制方法进行了验证。这些控制法则是根据在不同偏转角度下对襟翼进行的热膜测量而设计的。事实证明，这两种控制方法都能有效避免气流分离。这项工作的主要贡献在于为从业人员提供了针对气流分离现象的简单而有效的控制设计方法。同样重要的是，还提供了完整的验证活动数据集。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

European Journal of Control 工程技术-自动化与控制系统

CiteScore

5.80

自引率

5.90%

发文量

131

审稿时长

1 months

期刊介绍： The European Control Association (EUCA) has among its objectives to promote the development of the discipline. Apart from the European Control Conferences, the European Journal of Control is the Association''s main channel for the dissemination of important contributions in the field. The aim of the Journal is to publish high quality papers on the theory and practice of control and systems engineering. The scope of the Journal will be wide and cover all aspects of the discipline including methodologies, techniques and applications. Research in control and systems engineering is necessary to develop new concepts and tools which enhance our understanding and improve our ability to design and implement high performance control systems. Submitted papers should stress the practical motivations and relevance of their results. The design and implementation of a successful control system requires the use of a range of techniques: Modelling Robustness Analysis Identification Optimization Control Law Design Numerical analysis Fault Detection, and so on.