Results 11 to 20 of about 20,260 (297)

Interface Tracking Simulation for Subcooled Flow Boiling Using VOSET Method

open access: yesFrontiers in Energy Research, 2021
This article presents a numerical simulation on subcooled flow boiling at a high-pressure condition. An interface tracking method, VOSET, was used to handle the moving interface, and conjugate heat transfer between the wall and the fluid was included in ...
Kong Ling   +6 more
doaj   +1 more source

2D velocity vector profile measurement on bubbly flow using ultrasonic technique

open access: yesMechanical Engineering Journal, 2020
This paper describes a measurement technique for a two-dimensional (2D) velocity vector profile in the two-phase bubbly flow. The Ultrasonic Velocity Profiler (UVP) method, which is a nonintrusive technique applicable for real-time measurement, is ...
Wongsakorn WONGSAROJ   +4 more
doaj   +1 more source

Bubble, bubble, flow and Hubble: large scale galaxy flow from cosmological bubble collisions [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2010
We study large scale structure in the cosmology of Coleman-de Luccia bubble collisions. Within a set of controlled approximations we calculate the effects on galaxy motion seen from inside a bubble which has undergone such a collision. We find that generically bubble collisions lead to a coherent bulk flow of galaxies on some part of our sky, the ...
Larjo, Klaus, Levi, Thomas S.
openaire   +2 more sources

Experimental and Numerical Study of the Flow and Heat Transfer in a Bubbly Turbulent Flow in a Pipe with Sudden Expansion

open access: yesEnergies, 2019
The flow patterns and heat transfer of a downstream bubbly flow in a sudden pipe expansion are experimentally and numerically studied. Measurements of the bubble size were performed using shadow photography.
Pavel Lobanov   +2 more
doaj   +1 more source

Experimental Study of Bubbly-Slug Flow Transition Criteria in an Vertical Circular Tube by Using WMS

open access: yesFrontiers in Energy Research, 2020
Two-phase flow is an important and common phenomenon in reactor systems, and there are significant differences in the heat and mass transfer characteristics of two-phase flow under different flow patterns.
Shimo Yu   +6 more
doaj   +1 more source

The added mass coefficient of a dispersion of spherical gas bubbles in liquid [PDF]

open access: yes, 1989
Models published in the two-phase flow literature for the added mass coefficient of a dilute bubbly dispersion are discussed and compared. It is shown that the differences between the models are mainly due to the different ways in which the added mass is
Biesheuvel, A., Spoelstra, S.
core   +2 more sources

The Fluidization Backwash Method of Filter Beds by Air-water Bubbly Flow

open access: yesJournal of Water and Environment Technology, 2020
A novel fluidization backwash method by the air-water bubbly flow with air bubbles of various sizes has been proposed for rapid filters. The backwash efficiency is closely related to the bubble wake motion.
Masao Kuroda   +4 more
doaj   +1 more source

Energy spectra of buoyancy-driven bubbly flow in a vertical Hele-Shaw cell

open access: yesFrontiers in Physics, 2023
We present direct numerical simulations (DNS) study of confined buoyancy-driven bubbly flows in a Hele-Shaw setup. We investigate the spectral properties of the flow and make comparisons with experiments.
Rashmi Ramadugu   +2 more
doaj   +1 more source

Karakterisitik Flow Patern Pada Aliran Dua Fase Gas-Cairan Melewati Pipa Vertikal

open access: yesJurnal Teknik Industri, 2012
Multi-phase flows are widely encountered in several engineering and industrial facilities, such as conventional steam power  plants, evaporators and condensers, pressurized-water nuclear reactors, a wide variety of petroleum industries, chemicals and ...
Priyo Heru Adiwibowo
doaj   +1 more source

Bubbles and Capital Flows [PDF]

open access: yesSSRN Electronic Journal, 2002
This paper presents a stylized model of international trade and asset price bubbles. Its central insight is that bubbles tend to appear and expand in countries where productivity is low relative to the rest of the world. These bubbles absorb local savings, eliminating inefficient investments and liberating resources that are in part used to invest in ...
openaire   +6 more sources

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