Particle Image Velocimetry (PIV) has now matured as a versatile and robust tool for flow measurements. PIV is a technique able to measure instantaneous velocity fields in 2D and 3D domain at many points simultaneously, opening the path to field measurements of quantities such as vorticity and strain. The range of application in fluid dynamics research covers a wide spectrum, from microscopic to macroscopic scales of the atmospheric flows, from iposonic to hypersonic regime. The recent hardware and data-processing advances, especially in the fields of time-resolved PIV and volumetric Lagrangian Particle Tracking (LPT), have established PIV as a prominent technique in experimental fluid mechanics research and a must-have tool for top-class laboratories.
In recent years, PIV has undergone important changes, which have demonstrated the potential of further extending its reach. Leveraging physical principles opens the scenario to measuring thermodynamic variables and achieve a complete flow description. Blending with machine-learning techniques, low-order modelling and data-assimilation methods are also contributing to enriching the output of PIV measurements. To date, PIV is the most prominent candidate to become a complete flow measurement tool, capable to provide a complete flow description in terms of kinematic and thermodynamic variables.
The aim of this course is to discuss the fundamentals of the technique and initiate the attendees to the most recent developments in the field of PIV and LPT. The course will provide an overview of planar and volumetric PIV and LPT, including examples of application in a wide range of flows. A review of the state-of-art methods for data post-processing will also be included. The lectures will include practical examples with code writing of PIV image processing and data post-processing, with emphasis on the “human factor” in PIV image analysis and on the importance of robust algorithms to reduce measurement uncertainty. To this purpose, a PIV-interactive-session will be proposed, where the attendees will be invited to analyze images with their custom-made software or with open software available online.
The course is primarily directed to forthcoming PIV practitioners who wish to become expert users and/or developers of PIV. No previous knowledge is required besides basic understanding of fluid flows. The lecture series is currently organized as an online event. If the COVID situation will allow for it, the course will be given in both online and on-site format.
In this case, two visits and a laboratory demo will be organized on Wednesday and Thursday, as indicated in the course program, for the participants on site.
The lecture series will host a poster session, which will allow the participants to further exchange and interact with the lecturers. All the participants are encouraged to submit a 1-page abstract before November 1st, 2021 to Ms. Evelyne Crochard, crochard@vki.ac.be.
This lecture series will take place online an on-site.
Practical Information:
The prices in the paragraph "Fee & Registration" are displayed without the reduction of citizenship and/or the reduction for an early bird registration. Reductions willl be applied after you have fulfilled your data during the registration process.
Important information for ERCOFTAC members
The event is supported by ERCOFTAC, with special fare for PhD students (30% discount) from ERCOFTAC member institutions joining on-site.
Programme
After each lectures (1:15), a session of 15 minutes will be dedicated to questions and answers .
Monday 15 November 2021: Fundamentals
08:00 Registration
08:30 Welcome address and course introduction
09:00 PIV: background and working principle
Prof. Fulvio Scarano, TU DELFT, The Netherlands
10:30 Coffee Break
11:00 PIV image processing techniques
Prof. Tommaso Astarita, Universitá degli Studi di Napoli Federico II, Italy
12:30 Lunch
14:00 Image pre-processing methods
Prof. Andrea Ianiro, Universidad Carlos III de Madrid, Spain
15:30 Coffee Break
16:00 Write your own PIV code – PIV interactive session
Prof. Tommaso Astarita, Universitá degli Studi di Napoli Federico II, Italy
17:30 Reception
Tuesday 16 November 2021: Time-resolved and 3D PIV
09:00 Stereoscopic Particle Image Velocimetry
Prof. Tommaso Astarita, Universitá degli Studi di Napoli Federico II, Italy
10:30 Coffee Break
11:00 Time-resolved PIV/LPT: hardware and new opportunities
Prof. Christian J. Kähler, Universität der Bundeswehr München, Germany
12:30 Poster Session – posters will be on display during the entire Lecture Series
13:15 Lunch
14:15 Tomographic Particle Image Velocimetry
Prof. Stefano Discetti, Universidad Carlos III de Madrid, Spain
15:45 Coffee Break
16:15 3D Lagrangian Particle Tracking
Prof. Andreas Schroeder, DLR, Germany
17:45 End of day
Wednesday 17 November 2021: Data conditioning, post-processing and validation
09:00 Uncertainty estimation
Prof. Andrea Sciacchitano, TU DELFT, The Netherlands
10:30 Coffee Break
11:00 Statistical treatment, Fourier and modal decompositions
Prof. Miguel A. Mendez, von Karman Institute for Fluid Dynamics, Belgium
12:30 Lunch
13:30 Laboratory Visit (For participants on site, if allowed by COVID regulations)
14:30 Statistical methods to enhance PIV measurements
Prof. Stefano Discetti, Universidad Carlos III de Madrid, Spain
16:00 Coffee Break
16:30 Derivation of significant flow quantities and data assimilation
Prof. Andreas Schroeder, DLR, Germany
18:00 End of day
Thursday 18 November 2021: Applications
09:00 Micro- and Long-range-micro-PIV
Prof. Christian J. Kähler, Universität der Bundeswehr München, Germany
10:30 Coffee Break
11:00 PIV in industrial applications
Prof. Andreas Schroeder, DLR, Germany
12:30 Lunch
13:30 Laboratory Demo (For participants on site, if allowed by COVID regulations)
14:30 Large-scale PIV applications
Prof. Fulvio Scarano, TU DELFT, The Netherlands
16:00 Coffee Break
16:30 Discussion on PIV interactive session results, round table and closure remarks
Lecturers and Participants
17:45 End of day
Eligibility criteria for lecture series and events held at the von Karman Institute or online
The citizens of the following countries are eligible to attend the von Karman Institute Lecture Series:
- EU member countries
- NATO member countries
- NATO's Mediterranean Dialogue (Algeria, Egypt, Israel, Jordan, Mauritania, Morocco, Tunisia)
- Istanbul Cooperation Initiative (Bahrain, Kuwait, Qatar, United Arab Emirates)
- Argentina, Australia, Bolivia, Brazil, Cabo Verde, Cameroon, Chile, Colombia, Japan, India, Indonesia, Macedonia, Malaysia, Mauritania, Mexico, Montenegro, Mozambique, New Zealand, Nigeria, Republic of Korea, Saudi Arabia, Serbia, Singapore, South Africa, Switzerland, Thailand, Uruguay, South-Africa and Vietnam.
VKI reserves the right to request a clearance check with Belgian authorities.
The participants will have to present their ID card (for EU citizens) or passport (for other citizens) the first day of the lecture series .
Eligibility criteria for lecture series and events held outside the von Karman Institute
The criteria will depend on the events and will detailled on the page of the specific event or lecture series
Sales Conditions:
Fundamentals and recent advances in Particle Image Velocimetry and Lagrangian Particle Tracking
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