Model-Free Closed-Loop Control of Flow Past a Bluff Body: Methods, Applications, and Emerging Trends
Flow past one or multiple bluff bodies is almost ubiquitous in nature and industrial applications, and its rich underlying physics has made it one of the most typical problems in fluid mechanics and related disciplines. The search for ways to control such problems has attracted extensive attention f...
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MDPI AG
2024-11-01
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| author | Feng Ren Xin Wen Hui Tang |
| author_facet | Feng Ren Xin Wen Hui Tang |
| author_sort | Feng Ren |
| collection | DOAJ |
| description | Flow past one or multiple bluff bodies is almost ubiquitous in nature and industrial applications, and its rich underlying physics has made it one of the most typical problems in fluid mechanics and related disciplines. The search for ways to control such problems has attracted extensive attention from both the scientific and engineering fields, as this could potentially bring about benefits such as reduced drag, mitigated noise, suppressed vibration, and enhanced heat transfer. Flow control can be generally categorized into passive and active approaches, depending on whether there is an external energy input to the flow system. Active control is further divided into open-loop approaches and closed-loop approaches, depending on whether the controller depends on feedback signals extracted from the flow system. Unlike in many other applications of passive flow control and open-loop active flow control, theoretically advantageous closed-loop controls are quite rare in this area, due to the complicated features of flow systems. In this article, we review the recent progress in and future perspectives of flow past a single or multiple bluff bodies using model-free closed-loop control so as to outline the state-of-the-art research, determine the physical rationale, and point to some future research directions in this field. |
| format | Article |
| id | doaj-art-076f2c092a4d467aa8f2f8f3171fdf15 |
| institution | OA Journals |
| issn | 2076-0825 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Actuators |
| spelling | doaj-art-076f2c092a4d467aa8f2f8f3171fdf152025-08-20T02:00:55ZengMDPI AGActuators2076-08252024-11-01131248810.3390/act13120488Model-Free Closed-Loop Control of Flow Past a Bluff Body: Methods, Applications, and Emerging TrendsFeng Ren0Xin Wen1Hui Tang2School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, ChinaSchool of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200241, ChinaDepartment of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong, ChinaFlow past one or multiple bluff bodies is almost ubiquitous in nature and industrial applications, and its rich underlying physics has made it one of the most typical problems in fluid mechanics and related disciplines. The search for ways to control such problems has attracted extensive attention from both the scientific and engineering fields, as this could potentially bring about benefits such as reduced drag, mitigated noise, suppressed vibration, and enhanced heat transfer. Flow control can be generally categorized into passive and active approaches, depending on whether there is an external energy input to the flow system. Active control is further divided into open-loop approaches and closed-loop approaches, depending on whether the controller depends on feedback signals extracted from the flow system. Unlike in many other applications of passive flow control and open-loop active flow control, theoretically advantageous closed-loop controls are quite rare in this area, due to the complicated features of flow systems. In this article, we review the recent progress in and future perspectives of flow past a single or multiple bluff bodies using model-free closed-loop control so as to outline the state-of-the-art research, determine the physical rationale, and point to some future research directions in this field.https://www.mdpi.com/2076-0825/13/12/488active flow controlflow past a bluff bodymachine learning |
| spellingShingle | Feng Ren Xin Wen Hui Tang Model-Free Closed-Loop Control of Flow Past a Bluff Body: Methods, Applications, and Emerging Trends Actuators active flow control flow past a bluff body machine learning |
| title | Model-Free Closed-Loop Control of Flow Past a Bluff Body: Methods, Applications, and Emerging Trends |
| title_full | Model-Free Closed-Loop Control of Flow Past a Bluff Body: Methods, Applications, and Emerging Trends |
| title_fullStr | Model-Free Closed-Loop Control of Flow Past a Bluff Body: Methods, Applications, and Emerging Trends |
| title_full_unstemmed | Model-Free Closed-Loop Control of Flow Past a Bluff Body: Methods, Applications, and Emerging Trends |
| title_short | Model-Free Closed-Loop Control of Flow Past a Bluff Body: Methods, Applications, and Emerging Trends |
| title_sort | model free closed loop control of flow past a bluff body methods applications and emerging trends |
| topic | active flow control flow past a bluff body machine learning |
| url | https://www.mdpi.com/2076-0825/13/12/488 |
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