Results 41 to 50 of about 208,593 (196)

Experimental Identification of the Void Fraction in a Large Hydrodynamic Offset Halves Bearing

open access: yesLubricants
A common approach to optimising hydrodynamic journal bearings for power loss is to reduce the lubricant supply and direct the oil to specific bearing areas where it is needed to guarantee safe operation.
Alexander Engels   +6 more
doaj   +1 more source

Void Fraction Measurment Beneath a Stationary Breaking Wave [PDF]

open access: yes, 1998
Impedance based techniques have been used to quantify air entrainment by a stationary breaking wave at the bow of a ship. The present paper describes an impedance based void fraction meter which was developed to make measurements in this high speed ...
Brennen, Christopher E.   +2 more
core  

Computer Simulation of Packing of Particles with Size Distributions Produced by Fragmentation Processes [PDF]

open access: yes, 2015
Fragmentation schemes inspired by theoretical results and conjectures of Kolmogorov are applied to produce particle size distributions of different natures, depending on fragmentation parameters. A two-dimensional computer simulation method of packing is
Martin Martin, Miguel Angel   +3 more
core   +2 more sources

An Investigation of Void Fraction in the Stratified/Annular Flow Regions in Smooth, Horizontal Tubes [PDF]

open access: yes, 1999
Refrigerants R134a and R410A have been used for void fraction measurements in smooth horizontal tubes with diameters between 4mm and 7mm. Quality and mass flux were varied from 5% to 90% and 75 kglm2-s to 700 kglm2-s, respectively.
Chato, J.C.   +5 more
core  

Experimental study and analysis of design parameters for analysis of fluidelastic instability for steam generator tubing

open access: yesNuclear Engineering and Technology, 2023
In this paper, the evaluation method of fluidelastic instability (FEI) of newly designed steam generator tubing in pressurized water reactor (PWR) nuclear power plants is discussed.
Xiong Guangming   +3 more
doaj   +1 more source

Experimental study and modelling of average void fraction of gas-liquid two-phase flow in a helically coiled rectangular channel [PDF]

open access: yes, 2018
Void fraction is an important parameter in designing and simulating the relevant gas-liquid two-phase flow equipment and systems. Although numerous experimental research and modelling of void fraction in straight circular channels have been conducted ...
Cai, Bo   +4 more
core   +1 more source

Void fraction in simulated BWR fuel assembly. (I). Evaluation of cross-sectional averaged void fraction.

open access: yesJournal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan, 1988
Void measurement of a vertical (4×4) rod bundle has been conducted in a steam-water two phase flow using an advanced X-ray CT scanner and a large amount of rod bundle data was obtained. It was found from the results that the cross-sectional averaged void fraction data for a rod bundle could be correlated by the Drift-Flux model and that Zuber-Findlay ...
Shinichi MOROOKA   +3 more
openaire   +2 more sources

Experimental Study on Interfacial Area Transport of Two-Phase Flow under Vibration Conditions

open access: yesScience and Technology of Nuclear Installations, 2017
An experimental study on air-water two-phase flow under vibration condition has been conducted using double-sensor conductivity probe. The test section is an annular geometry with hydraulic diameter of 19.1 mm. The vibration frequency ranges from 0.47 Hz
Xiu Xiao   +5 more
doaj   +1 more source

Spatial and temporal tuning in void models for acceleration

open access: yes, 2010
There has been considerable interest in recent years in cosmological models in which we inhabit a very large, underdense void as an alternative to dark energy.
Foreman, Simon   +3 more
core   +1 more source

Void Fraction of Multi-Component Randomly Packed Beds with Size Distributions [Translated]†

open access: yesKONA Powder and Particle Journal, 2014
Experimental measurements and computer simulation are reported on the void fraction of multi-component randomly packed beds with log-normal, log-uniform, Rosin-Rammler or Andreasen (Gaudin-Schuhmann) size distributions.
Michitaka Suzuki   +3 more
doaj   +1 more source

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