WORKSHOPS
Workshop on Ultrasonic Doppler for Hydraulics in laboratory flumes
Monday 24th June 2024 - 08.30 – 17:30
Fully booked - waitlist available
This free Workshop on Ultrasonic Doppler (WUD) edition is organised by our sponsor UBERTONE in collaboration with members of the LOC. It will take place the day before the conference on Monday the 24th June in the School of Engineering’s Fluid Mechanics Laboratory on the University of Aberdeen campus.
The goal of this workshop is to give the opportunity to Master Students, PhD candidates and curious researchers to discover, use and discuss with peers about Ultrasonic Doppler Methods for Environmental Hydraulics experiments.
The content of the workshop will be centered on experimental practice, including exercises of installation, data recording and data processing of UVP (Ultrasonic Velocity Profiler) and/or ADVP (Acoustic Doppler Velocity Profiler) in two laboratory open channel flumes. Part of the workshop will also be dedicated to peer-to-peer discussions, to discuss measurement needs, methods and applicability of the methods.
Theoretical and lecture-like information will be sent in advance, for the participants to read and study beforehand. The course will be led the whole day by UBERTONE professionals and researchers/technicians from the Fluid Mechanics Laboratory.
Topics covered during the exercises:
- Ultrasonic Doppler measurement technique
- Acoustic velocity profiler
- Monostatic and bistatic measurement technique
- Open channel flumes
- Acoustic scatterers for quality data
- Through-wall measurements
- Turbulence measurement
- Bed roughness influence
This event is free of charge for registered symposium participants. Lunch and all other refreshments on the day will be offered by UBERTONE. Participants are invited to have lunch together on the day, which also serves as an informal discussion opportunity. Any accommodation costs involved with arriving a day early will need to be covered by the participants themselves.
Registration
This workshop is now closed for registration.
For more information, please email cpdservices@abdn.ac.uk
For more details see:
past WUD events:
Research workshop: Very large scale motions (VLSM) in open-channel flows
Monday 24th June 2024 - 09.30 – 17:00
The key topics of the workshop include:
(1) Experimental and numerical techniques for studying LSMs and VLSMs in open-channel flows (e.g., What is the length of the flume and/or simulation domain required to fully reproduce LSMs/VLSMs? Why bulk velocity statistics is fully established much earlier than the full establishment of VLSM’s spectral peak, at least in LES? How VLSMs can be measured and what are most informative quantitative measures for identification of VLSMs and assessment of their topology? How spectral-space and real-space presentations are linked?).
(2) VLSMs’ origin (e.g., Is VLSM an independently-generated turbulence feature or an ‘artefact’ of aligned LSMs? What is the topology of VLSMs? How LSMs and VLSMs coexist topologically, kinematically and energetically? What are the energy fluxes across the scales? What are contributions of LSMs and VLSMs to velocity statistics?)
(3) VLSMs in complex open-channel flows (e.g., What are the effects of flow heterogeneities such as acceleration/deceleration, secondary currents, mixing layers, bifurcations, confluences, roughness transition, etc on VLSMs and their occurrence/performance in real-life OCFs such as rivers).
(4) VLSM potential contributions to river dynamics and ecology (e.g., What are the possible roles of VLSMs in sediment dynamics, substance mixing/dispersion, hydraulic resistance, and flow-biota interactions?).
A sketch showing VLSMs in open-channel flow and explaining the nature of VLSMs’ contribution to the turbulent shear stress and uw co-spectra (from Zampiron et al., Very-large-scale motions in open-channel flow: Insights from velocity spectra, correlations, and structure functions. Phys. Fluids 36, 041707 (2024); doi: 10.1063/5.0205033.