Fluid-Structure-Sound Interactions and Control: Proceedings of the 5th Symposium on Fluid-Structure-Sound Interactions and Control

Preface
Contents
Simulating the Dynamics of Primary Cilium in Pulsatile Flow by the Immersed Boundary-Lattice Boltzmann Method
1 Introduction
2 Mathematical Formulation and Numerical Method
3 Results and Discussion
3.1 Dynamics of Primary Cilium at Various Peak Reynolds Number
3.2 Effect of Womersley Number on the Cilium Dynamics
4 Conclusions
References
The POD Analysis of Screech Tone in Low Mach Number Axisymmetric Supersonic Jet
1 Introduction
2 Computational Details
3 Proper Orthogonal Decomposition
4 Numerical Results and Analysis
4.1 Screech Tone's Frequency and Sound Pressure Level
4.2 POD Analysis of Fluctuating Velocity Field
5 Conclusion
References
Direct Numerical Simulations of Self-sustained Oscillations in Two-Dimensional Rectangular Cavity
1 Introduction
2 Numerical Simulations
2.1 Flow Configuration
2.2 Numerical Methods
3 Results and Analysis
3.1 Acoustic Field
3.2 Dynamic Mode Decomposition
3.3 Frequencies of Oscillation
4 Conclusion
References
Energy Harvesting Using a Tensioned Membrane with a Spring-Mounted Trailing Edge in Axial Flow
1 Introduction
2 Experimental Design
3 Results
4 Conclusions
References
Interaction of Flow with a Surface-Mounted Flexible Fence
1 Introduction
2 Problem Description and Methodology
3 Results and Discussion
References
Experimental Study of a Passive Control of Airfoil Lift Using Bioinspired Feather Flap
1 Introduction
2 Experimental Details
3 Results and Discussion
4 Conclusions
Reference
Tapered-Cantilever Based Fluid-Structure Interaction Modelling of the Human Soft Palate
1 Introduction
2 Methodology
3 Results and Discussion
4 Conclusions
References
Broadband Noise Absorber with Piezoelectric Shunting
1 Introduction
2 Theoretical Approach
3 Results and Discussion
4 Conclusions
References
Solid-Fluid Interaction in Path Instabilities of Sedimenting Flat Objects
1 Introduction
2 Some Examples of Co-existing States with Strong and Weak Solid-Fluid Interaction
3 Discussion and Conclusion
References
Aerodynamic and Aero-acoustics Performance of Unsteady Kinematics Applied to a Rotor Operating at Low-Reynolds Number
1 Introduction
2 Test Case and Numerical Method
3 Modelling of the Unsteady Aerodynamic Performance
4 Aero-acoustic Performance
5 Conclusion
References
Free-End Mean Pressure Distribution for a Finite Cylinder: Effect of Aspect Ratio
1 Introduction
2 Experimental Approach
3 Results and Discussion
4 Conclusions
References
A Static Aeroelastic Analysis of an Active Winglet Concept for Aircraft Performances Improvement
1 Introduction
2 Models and Work Description
2.1 Aerodynamic and Structural Models
2.2 Work Description
3 Results
4 Conclusion
References
Experimental Study of the Effect of a Steady Perimetric Blowing at the Rear of a 3D Bluff Body on the Wake Dynamics and Drag Reduction
1 Introduction
2 Experimental Setup
3 Results
4 Conclusion
References
Influence of Gap Width on Fluid–Structure Interaction for a Cylinder Cluster in Axial Flow
1 Introduction
2 Experimental Details
3 Results and Discussion
4 Conclusions
References
Skin-Friction Drag Reduction Using Micro-Grate Patterned Superhydrophobic Surface
1 Introduction
2 Experimental Details
3 Results and Discussion
4 Conclusions
References
Sinuous and Varicose Modes in Turbulent Flow Through a Compliant Channel
1 Introduction
2 System Modelling
3 Results and Discussion
4 Conclusions
References
Shape Optimization Considering the Stability of Fluid–Structure Interaction at Low Reynolds Numbers
1 Introduction
2 Numerical Methods
2.1 FSI Simulation
2.2 Calculation of Plunge-Damping Coefficient
3 Shape Optimization
3.1 Optimization Description
3.2 Results and Analysis
4 Conclusions
References
Aerodynamic Sound Identification of Longitudinal Vortex System
1 Introduction
2 Experimental Approach
3 Numerical Approach
4 Results and Discussion
5 Conclusions
References
Impulsive Start-Up of a Deformable Flapping Wing at Different Angular Conditions
1 Introduction
2 Experimental Procedures
2.1 Setup
2.2 Data Processing
3 Results
4 Conclusion
References
The Passive Separation Control of an Airfoil Using Self-Adaptive Flap
1 Introduction
2 Numerical Method
3 Results and Discussion
3.1 Flow Over a Naca0012 Airfoil
3.2 Flow Over a Naca0012 Airfoil with a Rigid Flap
3.3 Flow Over a Naca0012 Airfoil with a Flexible Flap
4 Conclusions
References
Design of Blown Flap Configurations Based on a Multi-element Airfoil
1 Introduction
2 Aerodynamic Optimization of a Blown Flap Based on a Three-Element Airfoil
2.1 Optimization Settings
2.2 Optimization Results
3 Conclusion
References
Added Masses of Cylinders of Different Shapes
1 Introduction
2 Experimental Details
3 Results and Discussion
4 Conclusions
References
Recognition Location Method of Sound Source Based on Rotating Microphones
1 Introduction
2 Theory
3 Numerical Simulation
4 Experimental Validation
5 Conclusion
References
Performance Optimization of Microphone Array Beamforming Based on Multi-circular Ring Microphone Arrays Combination
1 Introduction
2 Theory
3 Simulation
4 Conclusion
References
The Aeroacoustic Effect of Different Inter-Spaced Self-oscillating Passive Trailing Edge Flaplets
1 Introduction
2 Experimental Arrangement
3 Results
4 Conclusion
References
Circular Jet with Annular Backflow Using DBD Plasma Actuator
1 Introduction
2 Experimental Details
3 Results and Discussion
3.1 Initial Condition
3.2 Flow Structure
4 Conclusions
References
Investigation of the Asymmetric Wake Mode of a Three-Dimensional Square-Back Bluff Body
1 Introduction
2 Experiment and Numerical Simulation Set up
3 Results
3.1 Mean Flow Field
3.2 Instantaneous Back Pressure and Side Aerodynamic Force
3.3 Instantaneous Flow Fields
3.4 Proper Orthogonal Decomposition Analysis
4 Conclusion
References
Mechanisms of the Aerodynamic Improvement of an Airfoil Controlled by Sawtooth Plasma Actuator
1 Introduction
2 Experimental Details
3 Results and Discussion
4 Conclusions
References
Aerodynamic Performance of a Sedan Under Wind-Bridge-Tunnel Road Condition
1 Introduction
2 Numerical Method
2.1 Geometric Model
2.2 Governing Equation
3 Computational Setup
4 Results and Discussions
5 Conclusions
References
Vortex-Induced Vibration of a Circular Cylinder at High Reynolds Number
1 Introduction
2 Results and Discussion
3 Conclusions
References
Numerical Studying the Dynamic Stall of Reverse Flow Past a Wing
1 Introduction
2 Effects of Turbulence Models
3 Dynamic Stall Process
4 Conclusions
References
Drastic Changes of Turbulence in the Ignition Process of an n-Heptane/Air Mixture
1 Introduction
2 DNS of the Ignition Process of a Compressed n-Heptane/Air Mixture
3 Results
References
Visualization Observation of Two Phase Flow in Abrasive Supply Tube for Abrasive Injection Jet
1 Introduction
2 Experimental Apparatus and Method
3 Results and Discussion
3.1 Variation of Air Flow Rate in Abrasive Supply Tube
3.2 Flow Pattern and Velocity Distribution of Abrasive Particles
3.3 Frequency of Abrasive Dense Zone Formation at Different Positions
4 Conclusions
Reference
Vortex Induced Vibrations With Bi-stable Springs
1 Introduction
2 Wake Oscillator Model (WOM)
3 Results from WOM Simulations
4 Theory: Predicting Lock-In Range for VIV
4.1 ``Equilibrium Constraint'' for VIV
4.2 Intersection of EC with Natural Frequency Curves
5 Results from CFD Simulations
6 Conclusion
References
Impact of Optimized Trailing Edge Shapes on Noise Generation
1 Introduction
2 Numerical Methodology
3 Results of the Optimization
4 Acoustic Evaluation
5 Summary and Outlook
References
Camber Setting of a Morphing Wing with Macro-acuator Feedback Control
1 Introduction
2 Large Scale Prototype for Morphing Flap Description
2.1 Technical Specifications
2.2 Proposed Solution
2.3 Actuation System: EMA
3 Modelling of the System and Feedback Control Design
4 Conclusion
References
A Hybrid Dual-Grid Level-Set Based Immersed Boundary Method for Study of Multi-phase Flows with Fluid–Structure Interactions
1 Introduction
2 Dual-Grid Level-Set Based Immersed Boundary Method
2.1 Implementation of BC at the Solid-Fluid Interface
2.2 Validation Test: Water Entry Problem
3 Conclusion
References
Closed-Loop Drag Reduction Over a D-Shaped Body Via Coanda Actuation
1 Introduction
2 Experimental Setup
3 Results
4 Conclusion
References
Effect of Mass Ratio on Inline Vortex Induced Vibrations at a Low Reynolds Number
1 Introduction
2 Computational Methodology
3 Results and Discussion
4 Conclusions
References
Analysis of Turbulent Entrainment in Separating/Reattaching Flows
1 Introduction
2 Experimental Set-Up
3 Results and Discussion
4 Conclusions
References
Damped Oscillations of Spherical Pendulums
1 Introduction
2 Experimental Setup and Procedure
3 Results and Discussion
4 Conclusions
Reference
Flow Structures in the Initial Region of a Round Jet with Azimuthally Deformed Vortex Rings Utilizing a Sound Wave
1 Introduction
2 Experimental Apparatus and Methods
3 Experimental Results
4 Conclusions
Reference
Structure Generated Turbulence: Laminar Flow Through Metal Foam Replica
1 Introduction
2 Experimental Setup
3 Results and Discussion
4 Conclusions
References
Dynamics of a Cambered A320 Wing by Means of SMA Morphing and Time-Resolved PIV at High Reynolds Number
1 Introduction
2 Prototype Description
3 Experimental Set-Up
4 Results
4.1 POD Analysis
4.2 Reconstruction from POD Modes
5 Conclusion
References
Design and Experimental Validation of A320 Large Scale Morphing Flap Based on Electro-mechanical Actuators
1 Introduction
2 Design of Morphing Flap
2.1 Camber Control Principle, Specifications and Objectives
2.2 Actuation System Design
3 Preliminary Aerodynamic Results for the Fixed Configuration
3.1 Mean Pressure Measurements
3.2 Unsteady Pressure Measurements
4 Conclusion
References
Manipulation of a Shock-Wave/Boundary-Layer Interaction in the Transonic Regime Around a Supercritical Morphing Wing
1 Introduction
2 Numerical setup
3 Results
3.1 Effect of Morphing on the Force Coefficients
3.2 Frequency Synchronization
3.3 Time-Averaged Force Coefficients at Various Actuation Frequencies
3.4 Comparison of Mean Velocity Profiles in the Wake
4 Conclusions
References
Predictive Numerical Study of Cambered Morphing A320 High-Lift Configuration Based on Electro-Mechanical Actuators
1 Introduction
2 Computational Methodology
3 Numerical Results
4 Conclusion
References
Shape Control of Flexible Structures for Morphing Applications
1 Introduction
2 Formulation of the Problem
3 Numerical Examples and Discussion
4 Conclusions
References
Continuous Adjoint for Aerodynamic-Aeroacoustic Optimization Based on the Ffowcs Williams and Hawkings Analogy
1 Introduction
2 The CFD/FW-H Solver
3 The Continuous Adjoint Method
4 Verification of the Hybrid CFD/FW-H Solver
5 Optimization Results
6 Conclusions
References
On Boundary Conditions for Compressible Flow Simulations
1 Introduction
2 Complex Mapping
2.1 Plane-Wave Solutions
3 Application Case: Hole-Tone Configuration
4 Conclusion
References
Large-Eddy Simulation on Jet Mixing Enhancement Using Unsteady Minijets
1 Introduction
2 Numerical Method
3 Results and Discussion
4 Conclusion
References
Mixing Characteristics of a Flapping Jet of Self-Excitation Due to a Flexible Film
1 Introduction
2 Experimental Description
3 Results and Discussion
4 Conclusion
References
Flow-Induced Vibration Characteristics of a Fix-Supported Elastic Wing
1 Introduction
2 Experiment Details
3 Results and Discussion
4 Conclusions
References
On the Transient Effects Induced by Jet Actuation Over an Airfoil
1 Introduction
2 Experimental Details
3 Results and Discussion
3.1 Time-Averaged Control Effects
3.2 Transient Effects
4 Conclusion and Perspectives
References
Artificial Intelligence Control of a Turbulent Jet
1 Introduction
2 Experimental Details
3 Artificial Intelligence Control
3.1 Control Problem and Benchmark Actuations
3.2 Control Optimization Using Linear Genetic Programming
4 Results and Discussions
5 Conclusions
References
Turbulent Friction Drag Reduction: From Feedback to Predetermined, and Feedback Again
1 Introduction
2 Predetermined Control
2.1 Streamwise Traveling Wave
2.2 Uniform Blowing
3 Feedback Control Again
4 Toward the Future
References