This book explores the outcomes on flow control research activities carried out within the framework of two EU-funded projects focused on training-through-research of Marie Sklodowska-Curie doctoral students. The main goal of the projects described in this monograph is to assess the potential of the passive- and active-flow control methods for reduction of fuel consumption by a helicopter. The research scope encompasses the fields of structural dynamics, fluid flow dynamics, and actuators with control. Research featured in this volume demonstrates an experimental and numerical approach with a strong emphasis on the verification and validation of numerical models. The book is ideal for engineers, students, and researchers interested in the multidisciplinary field of flow control.
Part 1: Introduction to Flow control Technology.- Introduction and Literature Survey.- Part 2: Design of modern Gurney Flap.- CFD Method for Modelling Gurney Flaps.- Performance Enhancement of Rotors in Hover Using Fixed Gurney Flaps.- Alleviation of Retreating Side Stall Using Active Gurney Flaps.- Effect of Gurney Flaps on Overall Helicopter Flight Envelope.- Active Gurney Flap Unit.- Gurney Flap Force Calculation.- Part 3: Design of Rod Vortex Generator.- Investigation of Vortex Generators on Channels and Airfoils.- Implementation of Rod Vortex Generators on Helicopter Rotor Blades in Hover and Forward Flight Conditions.- Retractable Rod Vortex Generator.- Part 4: Important issues in Synthetic Jet Design.- Numerical Simulation of a Synthetic Jet Actuator for Active Flow Control.- Introduction to the Synthetic Jet Flow Control and Drag Reduction Techniques.- Experimental results of Synthetic Jet Wind Tunnel Tests.- Part 5: Multi Physics Co-Simulation Methods.- Fluid-Structure Interaction Simulation.- Analysis and Optimization of Flow Around Flexible Wings and Blades Using the Standard Co-Simulation Interface MpCCI.- Numerical Simulation of Air Flow and Acoustic Field Around a Passenger Car Model Using Euler Approach and Hybrid Meshing.- Computation of Rotorcraft Stability Derivatives Using the Discrete Adjoint Method.- Part 6: Structural Dynamics of Blades and Components.- Dynamics of the Synthetic Jet Actuator Investigation by the Numerical and Experimental Approach.- Thermal Synthetic Jet Actuator Investigation by Experimental Approach.- Modal Analysis of PZL-W-3/W-3A Sokol Main Rotor.- Strain Modal Analysis of the Blade.- Uncertainty Quantification of the Main Rotor Blades Measurements.- Temperature Compensation Methods for Elastic Wave Based SHM.
Professor Piotr Doerffer is Deputy Director for Scientific Issues within the Institute of Fluid-Flow Machinery Polish Academy of Sciences, Gdansk, Poland; Dr. George Barakos is Professor of Aerospace Sciences, School of Engineering, University of Glasgow, United Kingdom; and Dr. Marcin Luczak is a Research Associate within the Institute of Fluid-Flow Machinery Polish Academy of Sciences, Gdansk, Poland.
