Full-waveform inversion for leak localization in water pipe networks

Technical Seminar:
Full-waveform inversion for leak localization in water pipe networks

Date, time & venue

17 April 2024 (Wednesday), 17:00-18:00, Seminar via Zoom Meeting

Organized by

HKIE Civil Division and The Hong Kong Polytechnic University

Programme Highlight

Due to aging without timely renewal, hidden leaks continually occur in urban water supply pipes, which poses serious challenges to water and energy conservation as well as drinking water security. Inspired by echolocating animals, such as bats, that emit calls and use resulting echoes to locate and identify objects, transient waves have been successfully used for localizing leaks in water supply pipes. This talk covers several main aspects of the emerging and promising full-waveform inversion method for leak localization in water pipe networks, including: (1) clarify the physical mechanism of multipath wave propagation in both tree- and loop-type networks; (2) propose an alternative to the classic Tikhonov regularization for ill-conditioned inverse problems; and (3) modify the leak localization algorithm without the strict accessibility requirement of all boundary pipes.

Language

English

Fee

Free of Charge.

Speakers
Dr Che is a Research Assistant Professor at the Department of Civil and Environmental Engineering, PolyU. He obtained his PhD degree from PolyU in 2019. During 2021-2023, he was a faculty member at Hohai University. His research interests include fluid mechanics, wave dynamics, data assimilation, and inverse problems. He has successfully secured several grants from main funding agencies as PI, including NSFC. He has won several international awards and honours, including “Humboldt Research Fellowship” of Germany, “Willi H. Hager JHR Best Reviewer Award” of IAHR, and “JHE Editor’s Choice” of ASCE (twice). He is the Editorial Board Member of Engineering Applications of Computational Fluid Mechanics (SCI, JCR-Q1).

Registration & Enquiries

Please complete the on-line registration at https://us02web.zoom.us/webinar/register/WN_u8yHO5DFS3WIvyZc9drKrQ. The number of participants is limited to 500 on a first-come-first served basis. Priority will be given to members of the Civil Division.

Email registration will not be accepted. Successful applicants will be informed by email and provided a link to the Zoom Meeting at the designated time slot. Participants need to sign in using the membership no. and name entered at the time of registration. A CPD certificate will be issued 3 weeks after the seminar based on this membership no. and name.

For enquiries, please contact Mr. Alan Yan via email: alanyan@pyengineering.com.