A study of non-symmetric air water flow using wire mesh sensor

Wangjiraniran, Weerin; Aritomi, Masanori; Kikura, Hiroshige; Motegi, Yuichi; Prasser, Horst-Michael

doi:10.1016/j.expthermflusci.2004.05.004

Cited by 16 publications

(5 citation statements)

References 10 publications

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“…These studies revealed that the wire mesh can cause bubbles to break up and to either slow or accelerate, depending on the liquid velocity. However, despite this limitation, wire mesh sensors have been used successfully to study the transition between flow regimes, bubble size distribution, and bubble flow patterns (Fuangworawong et al, 2007;Lucas, Krepper, & Prasser, 2005;Pietruske & Prasser, 2007;Prasser, Krepper, & Lucas, 2002;Richter, Aritomi, Prasser, & Hampel, 2002;Wangjiraniran, Aritomi, Kikura, Motegi, & Prasser, 2005). Wire mesh sensors have also been used extensively in validation studies of other tomographic imaging techniques including ultrafast X-ray, ECT and ERT (Azzopardi et al, 2010;Olerni, Jia, & Wang, 2013;Prasser, Misawa, & Tiseanu, 2005).…”

Section: Fluid Phase Fraction Measurementsmentioning

confidence: 98%

Applications of tomography in bubble column and trickle bed reactors

Holland

2015

Industrial Tomography

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Section: Fluid Phase Fraction Measurementsmentioning

confidence: 98%

Applications of tomography in bubble column and trickle bed reactors

Holland

2015

Industrial Tomography

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“…(4) Diameter of bubble in liquid phase: There are a lot of reports concerning the diameter of bubble in liquid phase in the literature 40–44. The gas bubble size, generally, will decrease with an increase of the distance from the tuyere outlet; large bubble produced with collapse of a gas stream will float upwards near the outlet and break into some small bubbles at a location far from the outlet, then ascend continuously.…”

Section: Mathematical Model Of Fluid Flow In a Vod Bath With Simplmentioning

confidence: 99%

Numerical Simulation of Fluid Flow in Bath during Combined Top and Bottom Blowing VOD Refining Process of Stainless Steel

Wei

Zeng

2012

steel research int.

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The fluid flow in a bath in combined top and bottom blowing vacuum‐oxygen decarburization (VOD) refining process of stainless steel has numerically been simulated. The three‐dimensional mathematical model used is essentially based on that proposed in our previous work for the flow in combined side and top blowing argon‐oxygen decarburization (AOD) process, but considering the influence of reduced ambient pressure. Applying it to the flow in the bath of a 120 t VOD vessel under the refining conditions, the results present that the model can fairly well simulate and estimate the flow phenomena. The flow pattern of molten steel in the bath with the combined blowing is a composite result under the common action of the jets from a three‐hole Laval top lance and gas bottom blowing streams. The jets have a leading role on it; the molten steel in the whole bath is in vigorous stirring and circulatory motion during the blowing process. The streams do not alter the basic features of the gas agitation and liquid flow, but can evidently change the local flow pattern of the liquid and increase its turbulent kinetic energy to a certain extent. The flow field and turbulent kinetic energy distribution in the combined blowing with three tuyeres are more uniform than those in the blowing with double tuyeres. Increasing properly the tuyere eccentricities is of advantage for improving the velocity and turbulent kinetic energy distributions, the stirring and mixing result in the practical VOD refining process.

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“…With regard to the gas bubble diameter in liquid d b , there are numerous reports in the literature 23–32. The gas bubble size will present a gradient distribution with the distance from the tuyere outlet.…”

Section: Mathematical Model Of Fluid Flow In An Aod Bath With Simple mentioning

confidence: 99%

Mathematical Modeling of Fluid Flow in Bath during Combined Side and Top Blowing AOD Refining Process of Stainless Steel: Mathematical Model of the Fluid Flow

Wei

Shi

2011

steel research int.

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Considering that the liquid flow field under the conditions of the combined side and top blowing would be a combined result from the common action of the side blowing gas streams and a gas top blowing jet, as the first attempt, the three-dimensional mathematical models for the flows of molten steel in an AOD converter bath during the simple side and top blowing processes have been proposed and developed, respectively. And the mathematical model of the flow in the bath during the combined blowing AOD refining process of stainless steel has been given by the composition and superposition of the two models. In the composed model, the gas-liquid two-phase flow is described and treated in terms of the two-fluid (Eulerian-Eulerian) model. The especially modified two-equation kÀe model for the turbulence in the liquid phase is employed. And, the surface of the sunken pit formed by impact of the gas jet blown from a top lance at the central location of the bath liquid surface is regarded as a revolution paraboloid. The related details of the composed model are shown.

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A study of non-symmetric air water flow using wire mesh sensor

Cited by 16 publications

References 10 publications

Applications of tomography in bubble column and trickle bed reactors

Applications of tomography in bubble column and trickle bed reactors

Numerical Simulation of Fluid Flow in Bath during Combined Top and Bottom Blowing VOD Refining Process of Stainless Steel

Mathematical Modeling of Fluid Flow in Bath during Combined Side and Top Blowing AOD Refining Process of Stainless Steel: Mathematical Model of the Fluid Flow

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