This volume gathers the latest advances, innovations, and applications in the field of wind engineering, as presented by leading international researchers and engineers at the XVII Conference of the Italian Association for Wind Engineering (IN-VENTO), held in Milan, Italy on September 4–7, 2022. It covers highly diverse topics, including aeroelasticity, bluff-body aerodynamics, boundary layer wind tunnel testing, computational wind engineering, structural dynamics and reliability, wind-structure interaction, flow-induced vibrations, wind modeling and forecast, wind disaster mitigation, and wind climate assessment. The contributions, which were selected by means of a rigorous international peer-review process, highlight numerous exciting ideas that will spur novel research directions and foster multidisciplinary collaboration among different specialists.

lgli/3031530586.pdf

lgrsnf/3031530586.pdf

Springer Nature, Cham, 2024

Switzerland, Switzerland

1st ed. 2024, US, 2024

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Preface
Organization
Contents
Wind Load Assessment of Unitized Double Skin Facades
1 Introduction
2 Eurocode 1 Specifications
2.1 ENV 1991–2-4:1995
2.2 EN 1991–1-4:2005
2.3 PrEN 1991–1-4:2020
2.4 Comparison
3 Static and Dynamic Behaviour of Double Skin Facades
4 Experimental Tests and Numerical Simulations
4.1 Experimental Campaign
4.2 Numerical Simulations and Comparison
4.3 Loading of Skins
5 Conclusions
References
Global Pressure Coefficients for Building Roofs Revisited
1 Introduction
2 Methodology
2.1 Current Global Pressure Coefficients
2.2 The Aerodynamic Database
2.3 Definition of Roof Zoning
2.4 Extreme Value Analysis
3 Results and Discussion
3.1 Global Pressure Coefficients for Flat and Gable Roofs
3.2 Proposal and Comparison with Current Global Pressure Coefficients
4 Conclusion
References
Gust Factor of the Alongwind Response of Structures Subjected to Thunderstorm Outflows
1 Introduction
2 Analytical Formulation
3 Gust Factor Sensitivity to the Modulating Function
4 Gust Factor Sensitivity to the Modulating Function Parameters
5 Conclusions
References
An Analysis of Truck-Driver System Response to Crosswind in Tunnel Exit Conditions
1 Introduction
2 Methodology
3 Numerical Models
3.1 Vehicle Model
3.2 Aerodynamic Model
3.3 Scenario
3.4 Dynamic Driving Simulator
4 Results
4.1 Lateral Deviation and Normalized Load Transfer
4.2 Timeline of Events
5 Conclusions
References
Effects of Downsampling on the Prediction of the Italian Extreme Winds
1 Introduction
2 Methodology
2.1 Uncertainty Due to Downsampling
2.2 Available Data and Data Processing
3 Results and Discussion
4 Conclusion
References
Insights into the Transcritical Reynolds Number Range Based on Field Measurements of a Wind Turbine Tower
1 Introduction
2 Field Measurement
3 Results
3.1 Vortex Shedding Spectrum Observed from Measurement on D8 Tower
3.2 Short Introduction of Further Investigation on Vortex Shedding Load Through Wind Pressure Measurement
4 Conclusions
References
A Numerical Assessment to Estimate the Dynamic Factor for Wind Excited Façade Elements Having a Natural Frequency Smaller Than 5 Hz
1 Introduction
2 The Dynamic Effects in the European Standard
3 The Proposed Methodology
3.1 Loading Pressure Power Spectral Density
3.2 Single Degree of Freedom Frequency Response
3.3 Displacement Power Spectral Density
4 Results
4.1 Sensitivity Analysis on Dynamic Factor
4.2 Application Example
5 Conclusions and Future Work
References
Uncertainty Quantification in the Aeroelastic Response of a Twin-Box Deck Depending on the Inlet Conditions by CFD Studies
1 Introduction
2 Formulation
2.1 Force Coefficients and Aeroelastic Forces
2.2 Stochastic Collocation
3 Problem Description and Methodology
4 2D URANS Modeling
5 Results
5.1 Force Coefficients
5.2 Flutter Derivatives
6 Conclusions
References
Calibration of Wind Action Combination Factors from Experimental Data
1 Introduction
2 Combination of Time-Variant Loads
2.1 Limit State Function
2.2 Simplified Approach
2.3 Design Value Method
3 Calibration of Load Combination Factors
3.1 Load Models
3.2 Calibration Methods
4 Results and Discussion
5 Conclusions
References
Mitigation of Interference-Induced Vibrations for Towers in Group Arrangements
1 Introduction
2 Methods
2.1 Literature and Code Approach
2.2 Wind Tunnel Testing
3 Results and Discussions
3.1 Spacing a/D = 1.25, Group Arrangement 4x1
3.2 Spacing a/D = 1.5, Group Arrangement 2x1
3.3 Spacing a/D = 1.5, Group Arrangements 2x2 and 2+1
3.4 Spacing a/D = 1.5, Group Arrangement 4x1
3.5 Spacing a/D = 1.875, Group Arrangement 4x1
3.6 Spacing a/D = 2.5, Group Arrangement 4x1
4 Conclusion
References
Evaluation of Wind Comfort Over the Balconies of an Irregular Tall Building by Using Computational Wind Engineering
1 Introduction
2 Numerical Model and Wind Directionality
3 Numerical Analyses and Results
4 Conclusions
References
Effect of the Lateral Mean Recirculation Characteristics on Near-Wake and Bulk Quantities of a 5:1 Rectangular Cylinder
1 Introduction
2 Problem Definition and Investigation Methodology
3 Results and Discussion
4 Conclusions
References
Wind Field Simulation and Wind Damage Assessment of Typhoon Rai in the Philippines
1 Introduction
2 Methods
3 Results
4 Discussions
4.1 Wind Field Modeling
4.2 Wind Damage Assessment
5 Conclusions
References
Gust Factors, Turbulence Intensities, Roughness Lengths, and Wind Direction Factors of Typhoon Winds in the Philippines
1 Introduction
2 Methods
2.1 Typhoon Wind Field
2.2 Complex-Terrain Wind Simulation
2.3 Extraction of Gust Factors, Turbulence Intensities, Roughness Lengths, and Wind Direction Factors
3 Results and Discussion
3.1 Validation
3.2 Effects of Building Density
3.3 Local Wind Direction
3.4 Effects of Mid-Rise Buildings on the Boundary Layer
3.5 Topography
3.6 Turbulence Intensities
4 Conclusions
References
A Multidisciplinary Approach to Optimize the Gust Loading on Groups of Wind Turbine Towers at the Quayside
1 Introduction
2 Multidisciplinary Approach
2.1 Flowchart for the Assessment of Gust Buffeting Response
2.2 Case Study
3 Wind Climate
3.1 Basic Wind Velocity
3.2 Mean Wind Profile and Peak Velocity Pressure
4 Aerodynamic Coefficients
4.1 EN Design Standard
4.2 Wind Tunnel Tests
5 Damping
5.1 Structural Damping
5.2 Aerodynamic Damping
6 Conclusions and Perspectives
References
On the Modeling of Self-damping in Overhead Electrical Line Conductors Subject to Vortex-Induced Vibrations
1 The Proposed Self-damping Model
2 The Proposed Self-damping Model
3 Comparison Between Theoretical and Experimental Results
4 Conclusions
References
Influence of Stochastic Load Perturbations on the Performance of a Torsional-Flutter Wind Harvester
1 Introduction
2 Methodology
3 Results
4 Conclusions
References
Free-Stream Turbulence Effects on a Square Cylinder with a Forebody Screen at a Small Distance
1 Introduction
2 Experimental Set up
3 Results
4 Conclusions
References
Can Wind Lidars Be Used to Calibrate Mean Wind Profiles?
1 Introduction
2 Methodology
3 Numerical Investigation
3.1 Urban Areas with Mid-Rise Buildings
3.2 Urban Areas with Low-Rise Buildings
4 Concluding Remarks
References
Numerical Investigation of a TLP Wind Turbine Under Wind and Wave Loads
1 Introduction
2 Numerical Model
2.1 TLP Floating Wind Turbine
2.2 Numerical Modelling Approach
2.3 Simulation of Wind-Induced and Wave-Induced Loads
3 Results
4 Conclusions
References
Improving Long-Span Bridge Flutter Reliability Through Gyroscopic Stabilizer, Considering Random Aeroelastic Loads
1 Introduction
2 Theoretical Background
2.1 Dynamic Formulation of the Gyroscopic Device
2.2 Two-Mode Bridge Deck Generalized Formulation for Aeroelastic Instability
3 Numerical Results
4 Concluding Remarks
References
Bridge Flutter Stability in Turbulent Flow
1 Introduction
2 Time-Variant Dynamic System
3 Stability Analyses
3.1 Broad-Band Variation of the Angle of Attack
3.2 Narrow-Band Variation of the Angle of Attack
4 Case Study
4.1 Hardanger Bridge
4.2 Aerodynamic Coefficients
5 Discussion of Results
5.1 Stability Under Broad-Band Turbulence
5.2 Stability Under Sinusoidal Gusts
6 Conclusions
References
Aerodynamic Loads on Wind Turbine Towers Arranged in Groups with and Without Helical Strakes
1 Introduction
2 Case Study
3 Wind Tunnel Tests
3.1 Experimental Facility, Set-Up and Models
3.2 Simulation of the Supercritical Reynolds Number Regime
4 Discussion of Results
4.1 Isolated Tower
4.2 Groups of Towers
5 Conclusions
References
Comparison of Wake Oscillator Models to Predict Vortex-Induced Vibration of Tall Chimneys
1 Introduction
2 Wake Oscillator Models
2.1 Structural Oscillator
2.2 Wake Oscillator
3 Methodology
3.1 Analytical Method
3.2 Numerical Integration Method
4 Results and Discussion
5 Conclusions
References
The Reliability Analysis of Chimneys Due to Random Vortex Shedding
1 Introduction
2 Theory
2.1 Vickery and Basu Model
2.2 Spectral Analysis
2.3 Reliability Analysis
3 Parametric Study
4 Result and Discussion
4.1 Turbulence Intensity
4.2 Structural Damping
4.3 Correlation Length
5 Strouhal Number
6 Conclusions
References
A Bivariate Statistical Model of Large Pressure Peaks Measured in Wind Tunnel Tests
1 Introduction
2 Methods: The Statistical Model
3 Experimental Setup
4 Statistical Analysis of Large Negative Pressures
5 Application of the Statistical Model to Area Averaging of Pressures
6 Discussion and Conclusions
References
Drag Coefficient Limitations as Reference Parameter to Estimate Tangential Wind Load Affecting VGS
1 Introduction
1.1 Wind Loading on Plants
2 Materials and Methods
2.1 Literature Review of Wind-Vegetation Interaction Studies
2.2 Tangential Action in the Standard
2.3 Drag Coefficient Classification
2.4 Clustering of Drag Dataset
3 Results and Discussion
3.1 Comparison in Between Glazed and Vegetated Vertical Surfaces
4 Conclusions
References
Observation of Flow Downstream of a Bridge Deck Model Using Cobra Probe and Lidars
1 Introduction
2 Wind Tunnel Test Setup and Measurement Equipment
3 Data Analysis and Measurement Results
3.1 Cobra Probe Data Quality and Orientation
3.2 Wake Study
3.3 Comparison of Measurements by Collocated Cobra Probe and Lidars
3.4 Correlation Study
4 Discussion and Conclusion
References
Author Index

2024-03-08