LEADER 05254nam 2200649 450 001 9910824398203321 005 20200520144314.0 010 $a1-118-57677-2 010 $a1-118-57666-7 010 $a1-118-57681-0 035 $a(CKB)3710000000239189 035 $a(EBL)1784135 035 $a(OCoLC)890981769 035 $a(SSID)ssj0001377798 035 $a(PQKBManifestationID)11899867 035 $a(PQKBTitleCode)TC0001377798 035 $a(PQKBWorkID)11330427 035 $a(PQKB)10941110 035 $a(MiAaPQ)EBC1784135 035 $a(Au-PeEL)EBL1784135 035 $a(CaPaEBR)ebr10930296 035 $a(PPN)228543118 035 $a(EXLCZ)993710000000239189 100 $a20140926h20142014 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aTransport and coherent structures in wall turbulence /$fSedat Tardu 210 1$aLondon, England ;$aHoboken, New Jersey :$cISTE :$cWiley,$d2014. 210 4$dİ2014 215 $a1 online resource (490 p.) 225 1 $aFluid Mechanics Series 300 $aDescription based upon print version of record. 311 $a1-322-14980-1 311 $a1-84821-395-6 320 $aIncludes bibliographical references and index. 327 $aCover page; Half-Title page; Title page; Copyright page; Contents; Introduction; Main Notations; Roman letters; Subscript and superscript notation; Vectorial operators; Greek symbols; Abbreviations; 1: General Points; 1.1. Introduction; 1.2. General equations; 1.2.1. Eulerian relations; 1.2.1.1. Continuity equation; 1.2.1.2. Momentum balance equations; 1.3. Notations; 1.4. Reynolds equations; 1.5. Exact relations in a fully developed turbulent channel flow; 1.6. Equations for a turbulent boundary layer; 1.7. Scales in a wall-bounded turbulent flow; 1.8. Eddy viscosity closures 327 $a1.9. Turbulent intensities of the velocity components1.10. Fine structure; 1.11. Vorticity; 1.11.1. Characteristics of vorticity field near to the wall; 1.11.2. Turbulent intensities of the fluctuating vorticity components; 2: Transport Phenomena in Wall Turbulence; 2.1. Introduction; 2.2. Transport equations; 2.3. Models of return to isotropy; 2.4. Transport of turbulent kinetic energy; 2.5. Transport of the velocity gradient; 2.6. Transport of the Reynolds stress -uv; 2.7. Effects of the Reynolds number on transport; 2.8. Dissipation; 2.8.1. Dissipation of kinetic energy 327 $a2.8.2. Dissipation linked to the transport equations for the Reynolds stresses2.9. Pressure; 2.9.1. Wall pressure; 2.9.2. Spectral density; 2.9.3. Decomposition into slow and rapid components; 2.10. Anisotropy; 2.11. Rapid distortion; 3: Near-Wall Coherent Structures: History, Identification and Detection; 3.1. Introduction; 3.2. History; 3.3. Single-point Eulerian detection; 3.3.1. Detection in quadrant II; 3.3.2. Detection by the u-level (u-l); 3.3.3. Detection by VITA and VISA; 3.4. Stochastic estimation; 3.5. Wavelets and wall turbulence; 3.6. Critical points and topology 327 $a3.6.1. Critical points3.6.2. Application of the concept of critical points to the topology of turbulence; 3.6.3. Extension of the detection Q - ?; 3.6.4. A few significant results relating to the topology of wall turbulence; 3.7. Pressure field and vortices; 3.8. Vorticity and vortices; 3.9. Transport of invariants; 3.10. "Lambda-2" criterion; 3.11. Relations between the topological invariants and the ?2 technique; 3.12. Summary; 3.13. Lagrangian detection; 4: Coherent Wall Structures: Dynamics and Contribution to Turbulent Activity; 4.1. Introduction 327 $a4.2. Structural morphology of wall turbulence. Quasi-streamwise vortices or hairpin vortices?4.3. Frequency distribution of energetic events in the inner sublayer; 4.4. Quadrant-based structure of the Reynolds shear stress; 4.5. Streaks; 4.6. Wavelet analysis, at low Reynolds numbers, of the vorticity layers surrounding the streaks; 4.7. Effect of coherent structures on local wall friction; 4.8. Effect of coherent structures on wall pressure; 4.9. Active and passive structures; 4.10 Particle trajectories: Lagrangian approach; 4.10.1. Lagrangian description and transport by turbulent diffusion 327 $a4.10.2. Lagrangian description of transport by energetic events 330 $a Wall bounded turbulent flows are of major importance in industrial and environmental fluid mechanics. The structure of the wall turbulence is intrinsically related to the coherent structures that play a fundamental role in the transport process. The comprehension of their regeneration mechanism is indispensable for the development of efficient strategies in terms of drag control and near wall turbulence management. This book provides an up-to-date overview on the progress made in this specific area in recent years. 410 0$aFluid mechanics series. 606 $aTurbulence 615 0$aTurbulence. 676 $a532.0527 700 $aTardu$b Sedat$01638474 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910824398203321 996 $aTransport and coherent structures in wall turbulence$93980876 997 $aUNINA