- author = "Zhijian MAE Yang and Bo Yin and Yu Guan and Stephane Pierre Andre Redonnet and Yuanhang Zhu and Vikrant Gupta and Larry K. B. Li",
- title = "Closed-loop control of a globally unstable jet using genetic programming",
- booktitle = "73rd Annual Meeting of the APS Division of Fluid Dynamics",
- year = "2020",
- volume = "65",
- number = "13",
- pages = "J03.00006",
- address = "Virtual",
- month = nov # " 22-24",
- publisher = "Bulletin of the American Physical Society",
- keywords = "genetic algorithms, genetic programming",
- bibsource = "OAI-PMH server at repository.ust.hk",
- language = "English",
- oai = "oai:repository.ust.hk:1783.1-107418",
-
URL = "
http://hdl.handle.net/1783.1/107418",
-
URL = "http://repository.ust.hk/ir/Record/1783.1-107418",
-
broken = "http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004\&rft_val_fmt=info:ofi/fmt:kev:mtx:journal\&rfr_id=info:sid/HKUST:SPI\&rft.genre=article\&rft.issn=\&rft.volume=\&rft.issue=\&rft.date=2020\&rft.spage=\&rft.aulast=Yang\&rft.aufirst=Zhijian\&rft.atitle=Closed-loop+control+of+a+globally+unstable+jet+using+genetic+programming\&rft.title
- URL = "
https://meetings.aps.org/Meeting/DFD20/Session/J03.6",
- URL = "
https://absimage.aps.org/image/DFD20/MWS_DFD20-2020-001947.pdf",
- abstract = "When the density of a jet is sufficiently below that of its surroundings, it can become globally unstable, transitioning from a steady state to a self-excited state characterised by axisymmetric limit-cycle oscillations. We present experiments on the closed-loop control of such oscillations using an unsupervised data-driven model-free framework based on genetic programming (GP). Our implementation of this GP-based control framework relies on a hot-wire probe for sensing and a loudspeaker for actuation. We first initialize a generation of candidate control laws and evaluate their individual performance on the basis of a cost function that accounts for the amplitude of the global mode in a low-density jet and the actuation effort. We then breed further generations of control laws by enrolling them in a tournament and by executing genetic operations such as mutation, crossover, replication and elitism. By benchmarking the best GP-based control law against the best periodic forcing strategy found via conventional open-loop mapping, we show that GP-based control can provide a more efficient means of global mode suppression, offering new insight into the physics of hydrodynamically self-excited jets.",
- notes = "Jets: Control
The Hong Kong University of Science and Technology",
- URL = "
