Wall turbulence control

• Main Author: Tardu, Sedat
• Format: eBook Book
• Language: English
• Published: London Wiley 2017; Hoboken, N.J ISTE; John Wiley & Sons, Incorporated; Wiley-Blackwell
• Edition: 1
• Series: Focus series
• Subjects: Skin friction (Aerodynamics); Turbulence
• ISBN: 1848215592; 9781848215597
• DOI: 10.1002/9781119008972

Wall turbulence control is a major subject, the investigation of which involves significant industrial, environmental and fundamental consequences. Wall Turbulence Control addresses recent advances achieved in active and passive wall turbulence control over the past two decades. This valuable refere...

Table of Contents:

• Cover -- Title Page -- Copyright -- Contents -- Preface -- Notations -- 1. General Points -- 1.1. Introduction -- 1.2. Tools to analyze and develop control strategies -- 1.2.1. Numerical simulations -- 1.2.2. Sensors -- 1.2.3. Actuators -- 2. Summary of the Main Characteristics of Wall Turbulence -- 2.1. Introduction -- 2.2. General equations -- 2.2.1. Eulerian relations -- 2.3. Notations -- 2.4. Reynolds equations -- 2.5. Exact relations and FIK identity -- 2.6. Equations for a turbulent boundary layer -- 2.7. Scales in a turbulent wall flow -- 2.8. Turbulent viscosity closures -- 2.9. Turbulent intensities of the velocity components -- 2.10. Vorticity and near wall coherent structures -- 3. Passive Control -- 3.1. Introduction -- 3.2. Large eddy (outer layer) breakup devices, LEBUs (OLDs) -- 3.2.1. General -- 3.2.2. Alteration of the inner structure by outer layer devices -- 3.3. Riblets -- 3.3.1. General -- 3.3.2. Effect of the riblets on the fine structure of wall turbulence -- 3.3.3. Effect of the protrusion height -- 3.4. Superhydrophobic surfaces -- 4. Active Control -- 4.1. Introduction -- 4.2. Local blowing -- 4.3. Ad-hoc control -- 4.4. Transverse wall oscillations -- 4.5. Alternated spanwise Lorenz forcing and electromagnetic (EM) control -- 4.6. Extensions of spanwise forcing -- 4.7. Reynolds number dependence -- 4.8. Suboptimal active control -- 4.9. Optimal active control -- 4.10. Optimal linear control -- 4.11. Neural networks -- 4.12. Stochastic synchronization of the wall turbulence and dual control -- Bibliography -- Index -- Other titles from iSTE in Fluid Mechanics -- EULA