F16 - Cavitation erosion


Organizers: M. Dular & J. Wang

Matevz Dular University of Ljubljana




Jian Wang is Lecturer at Taizhou University. He has a joint PhD degree from University of Ljubljana and Jiangsu University, and his research interests are cavitation and cavitation erosion related to turbomachinery operation.


Contacts:
Matevz.Dular@fs.uni-lj.si
kin.jian.wang@gmail.com

Cavitation erosion is problem, which is difficult to approach, as it involves complicated flow phenomena combined with the reaction of the particular material from which the solid walls are made of. Vapor structures are produced in the low pressure regions of a cavitating flow. They are entrained by the flow and may violently collapse when entering regions of pressure recovery. Cavitation and consequently cavitation erosion is one of the most ubiquitous problems at operation of turbines, pumps, ship propellers and valves.

The objectives of the forum are to exchange recent advances and experience in experimental and numerical techniques to measure, correlate, model, and predict model and full-scale cavitation erosion. Both experimental, theoretical and computational modeling aspects in fluid dynamics and materials science can be addressed.


Non-exhaustive list of suggested Topics:

- Measurement techniques, accuracy and issues

- Cavitation erosion modeling

- Assessment of cavitation intensity from CFD modeling

- Measurement of "intensity" or "aggressiveness" of cavitating flows (impact loads, surface pressure, vibrations...)

- Quantification of material damage (surface integrity measurements, interferometry, profilometry, residual stresses, microscopy...)

- Erosion scaling, accelerated erosion methods, lab erosion testing, transfer of lab tests to full scale tests

- Modeling of material response to cavitation and computational prediction of cavitation damage (all types of materials)