Results 21 to 30 of about 69,320 (268)

Bubble size distribution and inner surface in a bubble flow [PDF]

open access: yesAIP Conference Proceedings, 2017
This paper follows the reports [4] and gives instructions on how to theoretically determine the bubble size and its distribution using the distribution function of Nukiyama-Tanasawa with friction factors.
P. Žitek, V. Valenta
openaire   +1 more source

An improved equivalent viscosity model for the bubbly oil under high shear rate

open access: yesFriction
Shear-thinning effect of pure oil and distribution of bubble size are essential factors affecting the viscosity of bubbly oil. This study aims to establish an improved equivalent viscosity model for bubbly oil by considering the shear-thinning effect and
Shaohua Li   +3 more
doaj   +1 more source

Research on Bubble Super-resolution Reconstruction Based on Fusion Neural Network Model

open access: yesYuanzineng kexue jishu
Accurate prediction of bubble spatial distribution in gas-liquid two-phase flow is of vital importance for the design, operation, and safety evaluation of nuclear power equipment.
SUN Zhiyuan, GAO Deyang, HAN Jinyu, HE Wen, BO Hanliang
doaj   +1 more source

Monte Carlo Simulation of Photon Transmission Time in Wake Bubble Curtain

open access: yes水下无人系统学报, 2023
At present, the Monte Carlo simulation of the wake bubble curtain is mostly used to simulate the photon scattering direction, and few scholars have studied the distribution of photon transmission time.
Linbo YAN, Jiansheng ZHANG
doaj   +1 more source

INCOME DISTRIBUTION BY AGE GROUP AND PRODUCTIVE BUBBLES [PDF]

open access: yesMacroeconomic Dynamics, 2017
The aim of this paper is to study the role of the distribution of income by age group on the existence of speculative bubbles. A crucial question is whether this distribution may promote a bubble associated to a larger level of capital, that is a productive bubble.
Raurich, Xavier, Seegmuller, Thomas
openaire   +2 more sources

Calibrated Hydraulic Resistance Adjuncts for Carbon Dioxide Angiography Optimization

open access: yesApplied Sciences
Background: Despite the growing interest in CO2 angiography, some mechanical aspects related to CO2 injection still need to be deepened, and some improvements are still possible.
Ivan Corazza   +2 more
doaj   +1 more source

Interfacial Heat Transfer of Condensation Bubble with Consideration of Bubble Number Distribution in Subcooled Flow Boiling

open access: yesJournal of Thermal Science and Technology, 2013
For predicting the void fraction distribution in subcooled flow boiling, it is necessary to measure the interfacial heat transfer coefficient—which determines the amount of condensation rate of vapor bubble—with high accuracy.
Noriaki INABA   +2 more
doaj   +1 more source

Numerical Simulation of Poly-Dispersed Bubbly Flow Using a Multi-Fluid Model

open access: yesJournal of Fluid Science and Technology, 2007
Numerical methods for predicting poly-dispersed bubbly flows in bubble columns are indispensable in the design of bubble column reactors. The objectives of the present study are (1) to experimentally investigate the effects of a bubble size distribution ...
Munenori MAEKAWA   +3 more
doaj   +1 more source

Inversion of Volume Scattering Function for Estimation of Bubble Size Distribution in Ocean Waters

open access: yesIEEE Access, 2021
Angular distribution of the intensity of light scattered by a spherical air bubble in the oceanic medium is distinctive near the critical scattering angle region, when light interacts with a bubble with a refractive index less than its surrounding medium.
Bhogeswara Rao Angara   +2 more
doaj   +1 more source

On the Distribution of Bubbles of the Brownian Sheet

open access: yesThe Annals of Probability, 1995
Let \(W\) be a real-valued two-parameter Brownian sheet. A set \(B \subset R^2_+\) is called a bubble if the interior of \(B\) is nonempty, \(W(s,t) = 0\) for \((s,t) \in \partial B\) and \(|W(s,t) |> 0\) for \((s,t) \in \text{int }B\). Let \(N(t,h)\) be the total number of bubbles of \(W\) in \([0,t]^2\), whose maximum height is greater than \(h\). It
openaire   +3 more sources

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