| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Castro, Saullo G. P.
Delft University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2023Explainable Artificial Intelligence to Investigate the Contribution of Design Variables to the Static Characteristics of Bistable Composite Laminatescitations
- 2022Developing Equations for Free Vibration Parameters of Bistable Composite Plates Using Multi-Objective Genetic Programming
- 2022Developing Equations for Free Vibration Parameters of Bistable Composite Plates Using Multi-Objective Genetic Programming
- 2022Measurement of damage growth in ultrasonic spot welded joint
- 2021Design, modeling, optimization, manufacturing and testing of variable-angle filament-wound cylinderscitations
- 2021Design, modeling, optimization, manufacturing and testing of variable-angle filament-wound cylinderscitations
- 2021Measuring geometric imperfections of variable–angle filament–wound cylinders with a simple digital image correlation setupcitations
- 2021Measuring geometric imperfections of variable–angle filament–wound cylinders with a simple digital image correlation setupcitations
- 2021Measuring geometric imperfections of variable–angle filament–wound cylinders with a simple digital image correlation setupcitations
- 2021Semi-analytical modelling of variable stiffness laminates with discontinuitiescitations
- 2021Circumferential and radial lamina application for natural frequencies problems
- 2020Numerical investigation of rain droplet impact on offshore wind turbine blades under different rainfall conditionscitations
- 2020A multiaxial fatigue damage model for isotropic materialscitations
- 2019Supersonic Flutter and Buckling Optimization of Tow Steered Composite Platescitations
- 2018An active-passive nonlinear finite element model for electromechanical composite morphing beams
- 2017Aeroelastic behavior of stiffened composite laminated panel with embedded SMA wire using the hierarchical Rayleigh–Ritz methodcitations
- 2017Assembly of semi-analytical models to address linear buckling and vibration of stiffened composite panels with debonding defectcitations
- 2017Panel flutter analysis and optimization of composite tow steered platescitations
- 2017Buckling of axially compressed CFRP cylinders with and without additional lateral loadcitations
- 2016Design and Manufacture of Conical Shell Structures Using Prepreg Laminatescitations
- 2016Flutter of stiffened composite panels considering the stiffener's base as a structural elementcitations
- 2015Experimental nondestructive test for estimation of buckling load on unstiffened cylindrical shells using vibration correlation techniquecitations
- 2015Investigation of Buckling Behavior of Composite Shell Structures with Cutoutscitations
- 2015Experimental and numerical estimation of buckling load on unstiffened cylindrical shells using a vibration correlation techniquecitations
- 2014Numerical characterization of imperfection sensitive composite structurescitations
- 2014Geometric imperfections and lower-bound methods used to calculate knock-down factors for axially compressed composite cylindrical shellscitations
- 2014Verification study on buckling behaviour of composite cylinder with eccentric supports
Places of action
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article
Numerical investigation of rain droplet impact on offshore wind turbine blades under different rainfall conditions
Abstract
<p>The leading edge of a fiber composite wind turbine blade (WTB) is prone to erosion damages due to repeated rain droplet impact during its service life. Such damages are critical to the blade's aerodynamic as well as structural performance, ultimately resulting in substantial repair costs. An effective design of a coating material for WTB is necessary and its analysis must include variables associated with erosive rain droplets such as (1) droplet diameter, (2) impact velocity, and (3) droplet impact angle. The present paper develops and validates a coupled fluid structure interaction (FSI) computational model for simulating rain droplet impact on WTBs, where the structure domain is modelled using conventional finite element method (FEM) and the fluid domain is modelled using smooth particle hydrodynamics (SPH). The 3D numerical model, developed in LS-DYNA, is validated with published experimental results. Further, a parametric study is considered to understand the effects of varying droplet size, impact angles and impact velocities on the impact responses of the leading edge coating system subjected to different rainfall conditions. The rainfall conditions considered for the analysis correspond to four different rainfall intensities (I) – light rainfall (2mm/hr), moderate rainfall (10mm/hr), heavy rainfall (25mm/hr), and very heavy rainfall (50mm/hr). The results show that the impact responses on the coating system increase with increasing droplet size and increasing droplet impact angle with maximum impulses, stresses and damages developed for normal impingement (90°). Also, the effects of droplet impact angles in the range of 50° to 90° are found critical for rainfall intensities representing very heavy rainfall conditions (I>25mm/hr). The results of the peak contact forces and impulses for the above combination of variables used in the numerical study are found in satisfactory agreement with analytical formulations developed through published experiments. Finally, repetitive rain droplet impact analyses are considered and number of impacts required for onset of erosion damages are found to increase by more than seven times upon reducing impact velocities from 140 m/s to 80 m/s for very heavy rainfall conditions (I>25mm/hr). The present study is expected to deliver a validated numerical model that can contribute towards enhancing the erosive capacity of a WTB.</p>