Results 71 to 80 of about 60,483 (231)
The spatio-temporal spectrum of turbulent flows
, 2015 Identification and extraction of vortical structures and of waves in a disorganised flow is a mayor challenge in the study of turbulence. We present a study of the spatio-temporal behavior of turbulent flows in the presence of different restitutive ...
Cobelli, P. J. +2 more
core +1 more source
Dispersion of Air Bubbles in Isotropic Turbulence [PDF]
Physical Review Letters, 2018 Physical Review Letters (accepted), 6 pages, 4 figures, 1 ...
Mathai, Varghese +4 more
openaire +6 more sources
Optimization of 3D‐Printed Structured Packings—Current State and Future Developments
Chemie Ingenieur Technik, EarlyView.This paper gives an overview about structured packing development for distillation, surveying heuristic development cycles, computational fluid dynamics simulations, and additive manufacturing techniques. The emerging application of shape optimization to improve packings is emphasized, and its benefits, impact, and limitations are discussed.
Dennis Stucke +3 more
wiley +1 more source
Chaotic Properties of a Turbulent Isotropic Fluid [PDF]
Physical Review Letters, 2018 8 pages, 8 ...
Berera, A., Ho, R. D. J. G.
openaire +4 more sources
Transient thermal modelling of green anode cooling in the aluminium industry
The Canadian Journal of Chemical Engineering, EarlyView.Summary of the methodology. Abstract Anodes, which are used in electrolytic aluminium production, are made by mixing dry aggregate (petroleum coke, rejected anodes, and butts) with coal tar pitch, compacting the resulting paste (green anode), and baking (baked anode). After compaction, the anodes are cooled to maintain their structural integrity before
Mohammadhossein Dabaghi +2 more
wiley +1 more source
Radar cross sections for mesospheric echoes at Jicamarca [PDF]
Annales Geophysicae, 2009 Radar cross sections (RCS) of mesospheric layers at 50 MHz observed at Jicamarca, Peru, range from 10−18 to 10−16 m−1, three orders of magnitudes smaller than cross sections reported for polar mesospheric winter echoes during solar ...
G. A. Lehmacher +5 more
doaj +1 more source
Isotropic vortex tangles in trapped atomic Bose-Einstein condensates via laser stirring
, 2014 The generation of isotropic vortex configurations in trapped atomic Bose-Einstein condensates offers a platform to elucidate quantum turbulence on mesoscopic scales.
Allen, A. J. +3 more
core +1 more source
Fourier Mass Lower Bounds for Batchelor‐Regime Passive Scalars
Communications on Pure and Applied Mathematics, EarlyView.ABSTRACT Batchelor predicted that a passive scalar ψν$\psi ^\nu$ with diffusivity ν$\nu$, advected by a smooth fluid velocity, should typically have Fourier mass distributed as |ψ̂ν|2(k)≈|k|−d$|\widehat{\psi }^\nu |^2(k) \approx |k|^{-d}$ for |k|≪ν−1/2$|k| \ll \nu ^{-1/2}$.
William Cooperman, Keefer Rowan
wiley +1 more source
Length Scale of Free Stream Turbulence and Its Impact on Bypass Transition in a Boundary Layer
Journal of Applied Fluid Mechanics, 2017 An experimental investigation was carried out to study the turbulent flow over a flat plate in a subsonic wind tunnel. The enhanced level of turbulence was generated by five wicker grids with square meshes, and different parameters (diameter of the grid ...
J. Grzelak, Z. Wierciński
doaj +2 more sources
An overview of Millionschikov's quasi-normality hypothesis applied to turbulence
International Journal of Applied Mechanics and Engineering, 2014 In this paper, we examine the zero-fourth cumulant approximation that was applied to fluctuating velocity components of homogeneous and isotropic turbulence by M.D. Millionschikov.
C. Mamaloukas, H.P. Mazumdar
doaj +1 more source