21 September 2023
Zephyr Final Public Workshop "Large-scale wind turbines complex terrain effect and urban wind energy: application cases" organized by the von Karman Institute for Fluid Dynamics.
18-20 September 2023
Lecture Series on "Multidisciplinary Simulation of Wind Farms in Complex Environments" organized by the von Karman Institute for Fluid Dynamics at VKI.
28 June 2022 morning
Public Workshop on “Building Energy Modelling” organized by Nottingham Trent University. The workshop will take place in hybrid mode (online/ onsite) at the Universidad Politécnica de Madrid.
28 June 2022 afternoon
Public Workshop on “Modelling Wind Energy Harvesting in complex urban environments ” organized by Nottingham Trent University. The workshop will take place in hybrid mode (online/ onsite) at the Universidad Politécnica de Madrid.
26-27 June 2023
Progress Meeting M42 at UMP, Madrid

17 November 2022 (9h00-12h40)
Workshop: Human Response to Sound Vibration – Iryna Lunevich (ESR10) & Dr Mattijs Smits (WUR)
18 November 2022 (9h00-11h00)
Workshop: Psychoacoustics: Towards human perception-driven design – Dr Roberto Merino Martinez (TU Delft)
15-16 November 2022
Progress Meeting
16-17 May 2021 – M30
Progress Meeting (TU Delft)
18 May 2021
Public Workshop on Gender Equality (organized by our partner, University of Twente) – online
19-20 May 2021
Training for ESRs (TU Delft)
8 - 10 November 2021
Progress meeting M24, Belgium
7 - 12 July 2021
Training #4 on Optimization and related techniques, organized by NTUA, TUD, Valeo, Enerall & VKI
5 - 6 July 2021
Progress Meeting Online (All ESRs, Beneficiaries and Advisory Board)
15 - 17 February 2021
Training #3, Rotor multi-physics – 15-17 February 2021 (ESRs, Beneficiaries)
Day 1: 15 February 2021
- Rotor aerodynamics modelling
- Blade Element Momentum Theory (BEMT) model
- Linear and angular momentum balance theory (MT)
- Blade Element Theory (BET)
- Combination of MT and BET (BEMT)
- Global coefficients
- Corrections to BEMT
- Effect of a finite number of blades (tip and root losses)
- Breakdown of the MT (turbulent wake state)
- Stall delay
- Unsteady aerodynamics (dynamic stall)
- Yawed flow BEMT
- Introduction – what and why?
- Governing Equations
- Brief overview of FD, FV, FE & DG
- CFD as a user
- Briefly on Grids
- Some notions of Turbulence
- Solution strategies for incompressible flow
- Example of application to a 3D rotating rotor
- Introduction
- Structural dynamics
- Rotor dynamics
- Applications
Day 2: 16 February 2021
- Basic aero-elasticity concepts
- Background
- Advanced concepts
- Aero-elastic tools in the WT design industry
- Introduction to fatigue
- HAWT fatigue loads
- Certification guidelines on fatigue loads
- Design tools VS design verification
- Flow control objectives
- Passive and active methods
- Vortex generators (vane, jet, rod)
- Reduction of BL separation
- Aerodynamic performance improvement
- Examples of application to wind turbines and turbomachinery cases
Day 3: 17 February 2021
- Airfoil noise sources
- Airfoil noise measurements and prediction
- Wind turbine noise: relevance
- Wind turbine noise sources and prediction
- Low-noise wind turbine design
Training #2, Atmospheric Boundary Layers – 2-3 December 2020 (ESRs, Beneficiaries)
Day 1: Atmospheric acoustic propagation and soundscaling
- Aspects of outdoor noise propagation
- Modelling atmospheric propagation
- Numerical methods
- Analytical and heuristic methods
- Engineering models
- References
- Context, definition and objectives
- Approach overview
- Source emission
- Propagation effects
- 3D audio rendering
- Applications – Perceptual evaluation
- Demonstrations
Day 2: Atmospheric Boundary Layer (ABL) flows 08:30
MTC, Day 2 – 1 December 2020 (ESRs, Beneficiaries and Partners)
MTC, Day 1 – 30 November 2020 (PO, ESRs, Beneficiaries and Partners)
First Online Training - 1 - 2 July 2020
First Online training on "Fundamentals of fluid mechanics, acoustics and structural dynamics" organized by TU Delft. Contact:Daniele Ragni (This email address is being protected from spambots. You need JavaScript enabled to view it.)
Training #1 of zEPHYR is being organized by TUDelft, covering some fundamentals aspects of fluid mechanics, acoustics and structural dynamics that are most relevant to the project.
Day 1: Fundamentals – Wednesday 1st of July (ESRs, Beneficiaries)
RANS derivation
Log-law
Near- and far-field, acoustic compactness, acoustic energy
Green’s functions
Lighthill’s analogy and Lighthill/Curle integral solutions
Design & Structural analysis
Structural Integrity & Certification
Day 2: Applications – Thursday 2nd of July (ESRs, Beneficiaries)
Ffowcs Williams and Hawkings analogy
Recent findings on wind turbine noise: effect of duct and angle of attack
ESR-KOM, Day 2 – Tuesday 30th of June (ESRs, Beneficiaries and Partners)
SR-KOM, Day 1 – Monday 29th of June (ESRs, Beneficiaries and Partners)
18 November 2020: Kick-Off Meeting @VKI
On November 18th, 2019, all the partners and beneficiaries of the project ZEPHYR met at the von Karman Institute for the kick-off meeting.