This volume collects the edited and reviewed contribution presented in the 9th iTi Conference that took place virtually, covering fundamental and applied aspects in turbulence. In the spirit of the iTi conference, the volume is produced after the conference so that the authors had the opportunity to incorporate comments and discussions raised during the meeting.In the present book, the contributions have been structured according to the topics:I ExperimentsII Simulations and ModellingIII Data Processing and ScalingIV TheoryV Miscellaneous topics

Provides recent research in Turbulence Presents proceedings of the iTi Conference on Turbulence held online on February 25th26th, 2021 Covers fundamental and applied aspects in turbulence

Inhalt

1. Dynamic triad interactions and non-equilibrium Turbulence. Velte and Buchhave.- 2. Turbulent/turbulent entrainment. Kankanwadi and Buxton.- 3. Active Control of Turbulent Convective Heat Transfer with Plasma Actuators. Castellanos, Michelis, Discetti, Ianiro and Kotsonis.- 4. Mean Parameters of Incompressible Turbulent Boundary Layer with Zero Pressure Gradient on the Wall of the TsAGI T-128 Wind Tunnel at Very High Reynolds Numbers. Gorbushin, Osipova and Zametaev.- 5. Investigation of self-similarity of the temperature stratified turbulent boundary layer over the wavy surface in laboratory conditions. Sergeev, Troitskaya, Kandaurov and Vdovin.- 6. On similarity of turbulence statistics of a turbulent planar jet taking the static pressure into account. Ito, Ito, Alfredsson, Segalini and Matsubara.- 7. Mean velocity profiles over streamwise-aligned permeable ridhes. Okazaki, Takase, Kuwata and Sug.- 8. Energy dissipation and total entropy production in SHREK experiment. Kharche, Fuchs, Bon-Mardion, Moro, Rousset, Baudet, Peinke and Girard.- 9. The Filtering Approach as a tool for modeling and analyzing turbulence. Germano, Abbà, Cimarelli, Ferrero, Grinstein, Klein, Larocca, Saenz and Scovazzi.- 10. Dynamic Bridging for Coarse Grained Simulations of Turbulent Material Mixing. Grinstein, Saenz and Germano.- 11. Dynamic tensorial eddy viscosity and turbulent stresses. Abbá, Cimarelli and Germano.- 12. A numerical study of the spanwise turbulence past a cylinder flow. Ferrero, Larocca, Scovazzi and Germano.- 13. Asymmetry in wake of oscillating foils with combined pitching and heaving motion. Verma and Hemmati .- 14. Helical structures in the wake of long wall-mounted prisms at high incident angles. Zargar and Hemmati .- 15. A Spatially Accelerating Turbulent Flow with Longitudinally Moving Walls. Falcone and He.- 16. Dissimilarity between heat and momentum transfer of turbulent heat transfer over surfaces with hemisphere protrusions. Nagura, Kuwata and Suga.- 17. The diagnostic plot - a tutorial with a ten year perspective. Alfredsson, Segalini and Örlu.- 18. Bayesian Optimisation with Gaussian Process Regression Applied to Fluid Problems. Rezaeiravesh, Morita, Tabatabaei, Vinuesa, Fukagata and Schlatter.- 19. Data-driven dynamics description of a transitional boundary layer. Foroozan, Guerrero, Ianiro and Discetti.- 20. Identification of a stochastic Hopf bifurcation from stationary measurement data of a turbulent flow. Sieber, Paschereit and Oberleithner.- 21. Data-driven identification of robust low-order models for dominant dynamics in turbulent flows. Schubert, Sieber, Oberleithner, Martinuzzi.- 22. Experimental assessment of symmetry induced higher-moment scaling laws in turbulent pipe flow. Zimmerman, Klewicki and Oberlack.- 23. Characteristics of Reynolds shear stress in Adverse Pressure Gradient Turbulent Boundary Layers. Romero, Zimmerman, Philip and Klewicki.- 24. Energy transfer in turbulent boundary layers withadverse pressure gradient. Gungor, Gungor and Maciel.- 25. Influence of rough surface morphology on boundary layer flow. Jurcáková, Procházka, Kellnerová, Anto, and Skála.- 26. Similarity scaling of a free, round jet in air. Buchhave, Zhu and Velte.- 27. Topological Differences in Mean Wakes of Circular and Square Cantilevered Cylinders. Kindree, Yan and Martinuzzi.- 28. Large-Scale-Motions and self-excited clustering of coherent structures in wall turbulence. Tardu.- 29. The conservative pressure Hessian and the free fluid particle model. Carbone, Bragg, Tom, Wilczek and Iovieno.- 30. Modelling pressure Hessian in turbulence through tensor function representation theory. Carbone and Wilczek .- 31. Stretched Amplitude Decaying Fourier Modes in the Jet Far-Field. Hodic, Meyer, George and Velte.- 32. Generalizable Theory of Reynolds Stress. Lee.- 33. Spectral Energetics of a Quasilinear Approximation in Uniform Shear Turbulence. Hernandez and Hwang .- 34.Turbulence & Uncertainty for Future Renewable Energy Reliability. Tavner and Zappalá.- 35. Instability on rotating sharp cones revisited. Kato, Alfredsson and Lingwood.- 36. Rotational effects on layered structures in inhomogeneous stratified turbulence. Iida.- 37. Magnetoclinicity instability. Yokoi and Tobias.- 38. Beginning of Taylor's and wavy vortices at the loss of stability of a conducting liquid flow produced by the rotating magnetic field. Zibold.- 39. Investigation of the Flow Generated by the Surface Discharge on the Cylinder Body in the Quiescent Air. Ivchenko and Shakhov.- 40.Numerical and Physical Aspects of Large-Eddy Simulation of Turbulent Mixing in a Helium-Air Supersonic Co-flowing Jet. Troshin, Bakhne and Sabelnikov .- 41.Turbulent energy production in the boundary layer of a gas flow near the free surface of a liquid. Goltsman and Saushin .- 42. Phase distribution of the developed three-component pipe flows. Saushin and Goltsman.