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Active Flow Control system FOR improving HYDRaulic turbine performances at off-design Operation

Deliverables

Report of the SMH system tested, optimised and coupled with the Controller in the simple structure at the laboratory

Document describing the final configuration of the SHM system and how the dynamic response of the simple structure is monitored and minimized by tuning the excitation levels and frequencies applied to it Deliverable related to Task 31

Second public summary of internal meetings and workshops

Document summarizing the conclusions of the internal meetings and workshops carried out during the previous 12 months Deliverable related to Task 53

First public summary of internal meetings and workshops

Document summarizing the conclusions of the internal meetings and workshops carried out during the previous 12 months Deliverable related to Task 53

Report from the optimisation tool implemented on the down-scale test rig and SHM system

Document reporting the results of the sensitivity analysis performed on the downscale test rig and SHM system For example the relative decrease of the pressure pulsations in the draft tube and the efficiency with the IPMICM system versus no IPMICM system will be key parameters Moreover the report will include the required tuning and scaling procedure that will facilitate the appellation of the developed tool on large scale systems Deliverable related to Task 42

Report of the IPM system investigated on the down-scale test rig

Document reporting the results of the sensitivity analysis performed on the down scale turbine model with the IPM system on different parameters The relative decrease of the pressure pulsations in the draft tube with the IPM system versus no IPM system will be a key parameter Deliverable related to Task 11

AFC4Hydro visual identity

A graphical profile will be presented Deliverable related to Task 51

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Publications

Numerical investigation of the effects of hydrofoil vibrations on the unsteady behavior of cavitation

Author(s): Linlin Geng; Jian Chen; Oscar De La Torre; Xavier Escaler
Published in: IOP Conference Series: Earth and Environmental Science, 2021, ISSN 1755-1315
Publisher: IOPscience
DOI: 10.1088/1755-1315/774/1/012078

Vortex rope mitigation with azimuthal perturbations: A numerical study

Author(s): Henrik Holmström, Joel Sundström, Michel Cervantes
Published in: IOP Conference Series Earth and Environmental Science, 2021
Publisher: IOP Publishing Ltd
DOI: 10.1088/1755-1315/774/1/012144

Mitigation of Draft Tube Pressure Pulsations by Radial Protrusion of Solid Bodies into the Flow Field: An Experimental Investigation

Author(s): Shahab Shiraghaee, Joel Sundström, Mehrdad Raisee, Michel Cervantes
Published in: IOP Conference Series Earth and Environmental Science, 2021
Publisher: IOP Publishing Ltd
DOI: 10.1088/1755-1315/774/1/012004

Mass transfer rate effects on the cavitating vortex shedding flow around a circular cylinder at low Reynolds number

Author(s): Jian Chen and Xavier Escaler
Published in: Proceedings of the 3rd IAHR-Asia Symposium on Hydraulic Machinery and Systems, 2021
Publisher: IAHR-Asia 2021 Turbine Testing Lab

Numerical assessment of parameters influencing the modal response of a Kaplan turbine model

Author(s): Rafel Roig; Oscar De La Torre; Esteve Jou; Xavier Escaler
Published in: IOP Conference Series: Earth and Environmental Science, 2021
Publisher: IOPscience
DOI: 10.1088/1755-1315/774/1/012057

Numerical modal analysis of a Kaplan turbine runner

Author(s): Rafel Roig, Oscar De La Torre, Esteve Jou, Xavier Escaler
Published in: 1st IAHR Young Professionals Congress, 2020, Page(s) 144-145, ISSN 97890-82484-6-63
Publisher: International Association for Hydro-Environment Engineering and Research -IAHR

Large Eddy Simulation of the transient cavitating vortical flow in the wake of a hydrofoil

Author(s): Jian Chen, Linlin Geng, Xavier Escaler
Published in: Proceeding of the 11th International Symposium on Cavitation CAV2021, 2021
Publisher: The Society of Naval Architects of Korea (SNAK)

Numerical Simulation of Vortex Breakdown with Code_Saturne

Author(s): Robert Mitruț, Diana Maria Bucur, Georgiana Dunca, Michel J. Cervantes
Published in: 2021 10th International Conference on ENERGY and ENVIRONMENT (CIEM), 2021
Publisher: IEEE
DOI: 10.1109/ciem52821.2021.9614834

Experimental and numerical modal analysis of a reduced scale Kaplan turbine model

Author(s): Rafel Roig, Oscar De La Torre, Esteve Jou, Berhanu Mulu, Xaveier Escaler.
Published in: Proceedings of the 3rd IAHR-Asia Symposium on Hydraulic Machinery and Systems, 2021
Publisher: IAHR-Asia 2021 Turbine Testing Lab

Assessment of turbulence models for the prediction of Bénard-Von Kármán vortex shedding behind a truncated hydrofoil in cavitation conditions

Author(s): Jian Chen, Linlin Geng, Oscar De La Torre and Xavier Escaler
Published in: IOP Conference Series: Earth and Environmental Science, 2021
Publisher: IOPscience
DOI: 10.1088/1755-1315/774/1/012025

Linear Global Stability Analysis of a Laminar Flow Around a Circular Body

Author(s): Robert Mitruț, Diana Maria Bucur, Georgiana Dunca, Michel J. Cervantes
Published in: 2021 12th International Symposium on Advanced Topics in Electrical Engineering (ATEE), 2021
Publisher: IEEE
DOI: 10.1109/atee52255.2021.9425105

Understanding the Influence of Wake Cavitation on the Dynamic Response of Hydraulic Profiles under Lock-In Conditions

Author(s): Rafel Roig; Jian Chen; Oscar de la Torre; Xavier Escaler
Published in: Energies, Vol 14, Iss 6033, p 6033 (2021), 2021, ISSN 1996-1073
Publisher: Multidisciplinary Digital Publishing Institute (MDPI)
DOI: 10.3390/en14196033

Fiber bragg grating sensors for underwater vibration measurement: potential hydropower applications

Author(s): Oscar de la Torre; Ignazio Floris; Salvador Sales; Xavier Escaler
Published in: Sensors (Basel, Switzerland), 2021, ISSN 1424-8220
Publisher: Multidisciplinary Digital Publishing Institute (MDPI)
DOI: 10.3390/s21134272