Download PDF Turbulence Structure and Modulation

Turbulence Structure and Modulation Alfredo Soldati

Author: Alfredo Soldati
Date: 01 Sep 2002
Publisher: SPRINGER VERLAG GMBH
Original Languages: English
Format: Paperback::316 pages, ePub, Audio CD
ISBN10: 3211833390
Dimension: 170x 244x 17.53mm::678g
Download Link: Turbulence Structure and Modulation

Download PDF Turbulence Structure and Modulation. This apparent high-frequency randomness of turbulence intensity is a typical characteristic of NBL turbulence in stable regimes and is defined as small-scale intermittency [i.e., the modulation of turbulence the small-scale gradients created individual coherent eddies … Wall turbulence structure to cause viscous drag. Aiko Yakeno, Yoshiaki Abe, Soshi Kawai, Taku Nonomura, Kozo Fujii, Spanwise modulation effects of local body force on downstream turbulence growth around two-dimensional hump, International Journal of Heat and Fluid Flow 63 108, 2017 Link; owing to atmospheric turbulence and Ip is the attenuation owing to pointing errors. In this paper, the atmospheric turbulence is considered only. III. PERFORMANCE ANALYSIS OF FSO SYSTEM A. Average BER without atmosphere turbulence Assuming direct intensity modulation direct detection is used in FSO system, The BER for OOK modulation can be Turbulence structure and modulation. [Alfredo Soldati;] Home. WorldCat Home About WorldCat Help. Search. Search for Library Items Search for Lists Search for Contacts Search for a Library. Create lists, bibliographies and reviews: or Search WorldCat. Find items in libraries near you A spatial stochastic turbulence model based on ambit processes is pro-posed. It is shown how a prescribed isotropic covariance structure can be re-produced. Non-Gaussian turbulence models are obtained through non-Gauss-ian Levy bases or through volatility modulation of … The baroclinic effects on turbulence intensity and structure are even more intricate, with turbulent kinetic energy (TKE) profiles displaying an increase of TKE magnitude with height for some cases. Modulation of mean wind and turbulence in the atmospheric boundary layer baroclinicity. Journal of the Atmospheric Sciences, 75(11), 3797-3821. Sources of wind-wave dissipation. In general understanding, the physics of wave dissipation can be categorized considering with its dissipation sources, such as 1) wave breaking 2) wave–turbulence interaction 3) wave–wave modulation respectively. (descriptions … We report on the amplitude of the density turbulence spectrum ( ) and the density modulation index (δN/N) in the solar wind between 10 and 45R ⊙. We derive these quantities using a structure function that is observationally constrained occultation observations of the Crab nebula made in 2011 and 2013 and similar observations published earlier. Mean flow and turbulence structure over fixed, two‐dimensional dunes: implications for sediment transport and bedform stability. Sean Bennett, John Bridge and Mike Leeder, Turbulence Modulation and Particle Velocities over Flat Sand Beds at Low Transport Rates, Journal of Hydraulic Engineering, 10.1061/(ASCE)0733-9429(1997)123:12(1118) DNS of a Large-Domain, Mach 3 Turbulent Boundary Layer: Turbulence Structure amplitude modulation and superposition. Figure 28 is a depiction of properties with both Mach and Reynolds numbers, such as a decrease in structure length with increasing Mach number. Turbulence Modulation due to Stratification in Turbidity Currents:Numerical Modeling and Implications for highly deficient in depositional structure. Parallel laminations are seen in fluvial deposits as well as turbidites, and have been reproduced in the laboratory (Paola et al A theoretical description of the phenomenon of modulation of near-wall turbulence large scale structures is investigated. The descrip-tion given is simple in that the eﬀect of large-scale structures is limited to a quasi-steady response of the near-wall turbulence to … The results of recent analytical work performed to characterize the short-exposure blurring effects of path integrated optical turbulence for annular aperture systems is described What do the differences between spatial and temporal spectra imply about the structure of turbulence? Ask Question Asked 4 years, 3 months ago. If one has a flow with spatial coherence, modulation of the turbulence a very large structure could easily look like intermittency in the time domain, when in fact nothing has changed about the Turbulence modulation in particle-laden flow, especially the influence of vortex shedding, was investigated means of the direct numerical simulation. To this end, we developed a finite-difference scheme to resolve the flow around each particle moving in turbulence. Edge turbulence and blobs are studied in the three-dimensional magnetic topology of the RFX-mod reversed field pinch. The edge of the RFX-mod shows a three-dimensional structure dominated a helical equilibrium with (1, −7) symmetry, which gives the same space-time modulation to all of the kinetic properties. As self-organized structure associated with density modulation can exist in a variety of systems from nonlinear optics 42, water waves 43, plasma 44,45, to planetary waves 46, our study should shed some light on the wave turbulence of other systems. the phase structure function. The dependence of these wave properties on the turbulence parameters within the Kolmogorov inertial subrange is found and, in particular, it is demonstrated that certain optical measurements of the phase structure function and the modulation trans� Turbulence modulation in clay-rich sediment-laden flows and some implications for sediment deposition. / Baas / Turbulence modulation in clay-rich sediment-laden flows experiments demonstrate that an increasing concentration of kaolinite results in a distinct change in velocity and turbulence structure in flows transitional between TY - JOUR. T1 - Modulation of the flow structure progressive bedforms in the Kinoshita meandering channel. AU - Abad, Jorge D. AU - Frias, Christian E. Aiko Yakeno, Soshi Kawai, Taku Nonomura, Kozo Fujii, Wall-turbulence structure with pressure gradient around 2D hump, Progress in Turbulence VI:Proceedings of the iTi Conference on Turbulence 2014 165(Part II) 167-171, 2016 Link The influence of rotation on turbulence and passive scalar transport in channel flow Turbulence structure in plane Couette flow under spanwise system rotation Turbulent boundary layers around wing sections up to Rec=1,000,000 Direct numerical simulation data are analyzed to investigate the modulation of near-wall turbu-lence anisotropy after the sudden application of wall blowing and suction. The effects on the near-wall turbu-lence structure are examined in terms of the asymptotic near-wall behavior of various turbulence quantities and the turbulence anisotropy. Turbulence and Structure Formation Associated with Vortex Dynamics in Non-Neutral Plasma Flow Yasuhito KIWAMOTO 1,2), ing to the structure formation of 2D vortex column as an extra feature of plasmas in vortex dynamics. 2. Then m =2 modulation (2 … Clustering and turbulence modulation in particle-laden shear flows - Volume 715 - P. Gualtieri, F. Picano, G. Sardina, C. M. Casciola An accurate quantification of the flow structure along the acoustic signal cycle in a forced two-phase jet. EPJ Web of Conferences, Vol. 67, Issue. P. 02013. Read "Turbulence modulation dispersed solid particles in rotating channel flows, International Journal of Multiphase Flow" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Turbulence modulation solid particles in a fully developed channel flow was investigated Lagrangian measurement technique. Digital particle image velocimetry (DPIV) and a high-speed CCD camera mounted on a shuttle moving with particle mean streamwise velocity were used to simultaneously detect particle and fluid information among particles. 1.1. Turbulence Modulation in Fluid-Particle Flows Carrier phase turbulence structure changes as a particulate phase is added to a clear fluid phase. This phenomenon is referred to as turbulence modulation in the literature (Elgobashi & Abou-Arab, 1983). It is important because any change in continuous phase turbulence has a direct modulation of turbulence due to the back-action of secondary structures through mode coupling. Afterwards, 3D ETG and ITG simulations are performed to analyze the spectral characteristics of turbulence due to the dynamics of secondary flow structures. 2.1. Forced HM Turbulence … Large-scale amplitude modulation of the small-scale structures in turbulent boundary layers - Volume 628 - ROMAIN MATHIS, NICHOLAS HUTCHINS, IVAN MARUSIC. Marusic, I. & Hutchins, N. 2008 Study of the log-layer structure in wall turbulence over a very large range of Reynolds number. Modulation of Near-Wall Turbulence Structure with Wall Blowing and Suction. Yongmann M. Chung, The Spatiotemporal Structure of Geodesic Acoustic Modes in the Edge Plasma of TEXTOR S. Zoletnik1, L. Bardoczi1, • Potential modulation measured floating potential probes[1] turbulence structure is moved with modeled local GAM velocity. Broadband detector A second-order model which predicts the modulation of turbulence in jets laden with uniform size solid particles or liquid droplets is discussed. The approach followed is to start from the separate momentum and continuity equations of each phase and derive two new conservation equations. The first is for the carrier fluid's kinetic energy of

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