Results 21 to 30 of about 7,809,143 (340)
Coherence of Velocity Fluctuations in Turbulent Flows [PDF]
Physical Review Letters, 2022 We investigate the spatio-temporal quantity of coherence for turbulent velocity fluctuations at spatial distances of the order or larger than the integral length scale $l_{0}$. Using controlled laboratory experiments, an exponential decay as a function of distance is observed with a decay rate which depends on the flow properties.
Prabhudesai, Gaurav +3 more
openaire +4 more sources
Measurement and control systems for an imaging electromagnetic flow meter [PDF]
, 2014 Electromagnetic flow metres based on the principles of Faraday's laws of induction have been used successfully in many industries. The conventional electromagnetic flow metre can measure the mean liquid velocity in axisymmetric single phase flows ...
G. Lucas +14 more
core +1 more source
Velocity inversion in nanochannel flow [PDF]
Physical Review E, 2007 The nanoscale cylindrical Couette flow is investigated by means of molecular dynamics simulations, in the case where the inner cylinder is rotating whereas the outer cylinder is at rest. We find that the tangential velocity of the low is inverted when the fluid-wall interaction near the outer cylinder is weak and the fluid density is low.
openaire +3 more sources
Back-flow ripples in troughs downstream of unit bars: Formation, preservation and value for interpreting flow conditions [PDF]
, 2015 Back-flow ripples are bedforms created within the lee-side eddy of a larger bedform with migration directions opposed or oblique to that of the host bedform.
Allen J.R.L. +19 more
core +1 more source
Influence factors of pressure loss in pipeline transportation of paste slurry
工程科学学报, 2015 A new pipe loop test platform was built to study the influence factors and levels of pressure loss in slurry pipe transportation. The influences of pipe inner-diameter, flow velocity, slurry concentration and particle size on the pressure loss were ...
WANG Shao-yong +4 more
doaj +1 more source
Investigation on vibration response characteristics and influencing factors of the fuel rods of EPR
Frontiers in Energy Research, 2022 First, the theory of wet modal analysis and vibration response analysis are introduced, and the semi-empirical vibration equation is derived in this article.
Naibin Jiang +3 more
doaj +1 more source
NSFnets (Navier-Stokes flow nets): Physics-informed neural networks for the incompressible Navier-Stokes equations [PDF]
Journal of Computational Physics, 2020 We employ physics-informed neural networks (PINNs) to simulate the incompressible flows ranging from laminar to turbulent flows. We perform PINN simulations by considering two different formulations of the Navier-Stokes equations: the velocity-pressure ...
Xiaowei Jin +3 more
semanticscholar +1 more source
Measurement of unsteady velocity flow field of pulsating flow
EPJ Web of Conferences, 2016 This paper describes an investigation of the commercial synthetic jet actuator “SynJet ZFlow 90 Outdoor Cooler” (Nuventix). The velocity flow field was investigated using the thermoanemometry method in the constant temperature mode.
Dančová Petra, Vít Tomáš
doaj +1 more source
International Journal of Technology, 2021 A computational fluid dynamics investigation was carried out on a slender body catamaran to determine the effect of pressure and flow velocity changes for varied hull separations.
I Ketut Aria Pria Utama +4 more
doaj +1 more source
Correlations between sunspots and their moat flows [PDF]
, 2013 Context. The presence of the moat flow around sunspots is intimately linked to the mere existence of sunspots. Aims. We characterize the moat flow (MF) and Evershed flow (EF) in sunspots to enhance our knowledge of sunspot structures and photospheric ...
Löhner-Böttcher, Johannes +1 more
core +1 more source