One-dimensional Flow Characteristics of Gas-Powder Two Phase Flow in Packed Beds

The article “One-dimensional drift-flux correlations for two-phase flow in medium-size channels” written by Takashi Hibiki, was originally published electronically on the publisher’s internet portal (currently SpringerLink) on 17 April 2019 without open access. After publication in Volume 1, Issue 2, page 85–100, the author(s) decided to opt for Open Choice and to make the article an open access publication. Therefore, the copyright of the article has been changed to © The Author(s) 2020 and the article is forthwith distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, duplication, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Investigation of air-water two-phase flow characteristics in a 25.4 mm diameter circular pipe

Progress in Nuclear Energy ◽

10.1016/j.pnucene.2021.103813 ◽

2021 ◽

pp. 103813

Author(s):

Dewei Wang ◽

Shanbin Shi ◽

Yucheng Fu ◽

Kyle Song ◽

Xiaodong Sun ◽

...

Keyword(s):

Two Phase Flow ◽

Flow Characteristics ◽

Circular Pipe ◽

Phase Flow ◽

Two Phase

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Experimental data for the slug two-phase flow characteristics in horizontal pipeline

Data in Brief ◽

10.1016/j.dib.2017.11.026 ◽

2018 ◽

Vol 16 ◽

pp. 527-530 ◽

Cited By ~ 2

Author(s):

Abdalellah O. Mohmmed ◽

Mohammad S. Nasif ◽

Hussain H. Al-Kayiem

Keyword(s):

Experimental Data ◽

Two Phase Flow ◽

Flow Characteristics ◽

Phase Flow ◽

Two Phase

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Combined Electromagnetic Tomography for Determining Two-phase Flow Characteristics in the Submerged Entry Nozzle and in the Mold of a Continuous Casting Model

Metallurgical and Materials Transactions B ◽

10.1007/s11663-011-9553-y ◽

2011 ◽

Vol 42 (6) ◽

pp. 1201-1210 ◽

Cited By ~ 43

Author(s):

Thomas Wondrak ◽

Sven Eckert ◽

Gunter Gerbeth ◽

Konrad Klotsche ◽

Frank Stefani ◽

...

Keyword(s):

Continuous Casting ◽

Two Phase Flow ◽

Flow Characteristics ◽

Submerged Entry Nozzle ◽

Phase Flow ◽

Two Phase ◽

Electromagnetic Tomography

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Experimental Study of Two-Phase Flow Induced by Cavitation Through a Safety Relief Valve

Volume 5: High-Pressure Technology; ASME NDE Division; Rudy Scavuzzo Student Paper Symposium ◽

10.1115/pvp2013-97409 ◽

2013 ◽

Cited By ~ 1

Author(s):

Jorge Pinho ◽

Patrick Rambaud ◽

Saïd Chabane

Keyword(s):

Local Minimum ◽

Two Phase Flow ◽

Flow Characteristics ◽

Control Valve ◽

Recovery Factor ◽

Phase Flow ◽

Relief Valve ◽

Two Phase ◽

Blow Down ◽

Choked Flow

The goal of this study is to understand the behavior of a safety relief valve in presence of a two-phase flow induced by cavitation, in which the mass flux tends to be reduced. Two distinct safety relief valves are tested: an API 2J3 type and a transparent model based on an API 1 1/2G3 type. Instead of using a spring, the design of both valves allows the adjustment of the disk at any desired lift. Tests are conducted with water at ambient temperature. Results show a similar influence of cavitation on the flow characteristics of both valves. The liquid pressure recovery factor FL, which is normally used to identify a choked flow condition in a control valve, is experimentally determined in a safety relief valve. The existence of a local minimum located at a height position L/D = 0.14 indicates in this position, a change on the flow characteristics of both valves. It is verified that the existence of a local minimum in the liquid recovery factor is related to the minimum cross section of the flow, which does not remain constant for every lift positions. Furthermore, it is remarked that in the case of the 2J3 safety valve, the blow down ring adjustment has significant influence on the location of the minimum cross sections of the flow.

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A Physically Based, One-Dimensional Two-Fluid Model for Direct Contact Condensation of Steam Jets Submerged in Subcooled Water

Journal of Nuclear Engineering and Radiation Science ◽

10.1115/1.4029417 ◽

2015 ◽

Vol 1 (2) ◽

Cited By ~ 6

Author(s):

David Heinze ◽

Thomas Schulenberg ◽

Lars Behnke

Keyword(s):

Direct Contact ◽

Two Phase Flow ◽

Fluid Model ◽

Interfacial Area ◽

Phase Flow ◽

Two Phase ◽

One Dimensional ◽

Two Fluid Model ◽

Contact Condensation ◽

Two Fluid

A simulation model for the direct contact condensation of steam in subcooled water is presented that allows determination of major parameters of the process, such as the jet penetration length. Entrainment of water by the steam jet is modeled based on the Kelvin–Helmholtz and Rayleigh–Taylor instability theories. Primary atomization due to acceleration of interfacial waves and secondary atomization due to aerodynamic forces account for the initial size of entrained droplets. The resulting steam-water two-phase flow is simulated based on a one-dimensional two-fluid model. An interfacial area transport equation is used to track changes of the interfacial area density due to droplet entrainment and steam condensation. Interfacial heat and mass transfer rates during condensation are calculated using the two-resistance model. The resulting two-phase flow equations constitute a system of ordinary differential equations, which is solved by means of the explicit Runge–Kutta–Fehlberg algorithm. The simulation results are in good qualitative agreement with published experimental data over a wide range of pool temperatures and mass flow rates.

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