Experimental measurement and numerical computation of velocity and turbulence parameters in a heated liquid metal system

Murthy, Ashok; Szekely, J.; El-Kaddah, N.

doi:10.1007/bf02650196

Cited by 12 publications

(15 citation statements)

References 10 publications

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“…Figure 7 shows lines of iso-viscosity ratios for the standard case. The results shown indicate a wide range, from 2ϫ10 3 -3ϫ10 4 . As this ratio increases, is an indication of a much higher value of the turbulent viscosity with respect to molecular viscosity.…”

mentioning

confidence: 84%

“…Murthy et al 4) reported experimental measurements describing the velocity field and the turbulent electromagnetically-driven flow, employing DC current. In this work a new approach to the classification of the flow as laminar or turbulent for recirculating flow systems was presented.…”

Section: Kurimoto Et Almentioning

confidence: 99%

“…In the circulation loop located below the point of injection, the tracer circulates due to convection. On the other hand, the sensors placed to the left (2,4,6,8) experience mixing by diffusion and turbulence and yield a continuous increase in concentration over time.…”

mentioning

confidence: 99%

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Effect of Arc Length on Fluid Flow and Mixing Phenomena in AC Electric Arc Furnaces

2010

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Fluid flow and mixing phenomena in an industrial three phase Electric Arc Furnace has been investigated, as a function of arc length. Velocity and temperature fields as well as mixing times were computed, assuming that liquid steel occupies the whole computational domain and buoyancy forces are responsible for convective flow. It is reported a strong effect of arc length on both fluid flow and mixing time, suggesting a metallurgical practice with long arc operation to improve the melting kinetics of the metallic charge. Thermal stratification has also been confirmed, however the volume of hot steel increases when arc length also increases.

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mentioning

confidence: 84%

Section: Kurimoto Et Almentioning

confidence: 99%

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Effect of Arc Length on Fluid Flow and Mixing Phenomena in AC Electric Arc Furnaces

2010

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“…[15][16][17][18][19][20] Molten metal flows in these reactors seem to reach a steady state quickly due to strong turbulent mixing. [15][16][17][18][19][20] Molten metal flows in these reactors seem to reach a steady state quickly due to strong turbulent mixing.…”

Section: Introductionmentioning

confidence: 99%

Establishment time of liquid flow in a bath agitated by bottom gas injection

Iguchi

Kondoh²,

Nakajima

1997

Metall Mater Trans B

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“…Themathematical model can be formulated as follows: 7aT ar The model involves Navier-Stokes Eqs. (4) and (5), the continuity Eq. (6), the diffusion Eq.…”

Section: )mentioning

confidence: 99%

Mixing Phenomena in a Liquid Bath Stirred by Gas Jets through Side and Inclined Nozzles.

et al. 1993

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The perfect mixing time, t~, of the water bath, during gas injection through bottom (vertical and iclined) and side nozzles has been measuredby using electrical conductivity technique. Effects of gas flow rate, bath depth, nozzle angle and location have been examined. The measurements indicate that under the condition of a shallow bath (H/D =0.31) and large gas flow rate (specific powere> I O-' W/kg) influences of the nozzle angle and nozzle location on the mixing time are significant, On the other hand, effects of those parameters on t~are negligible in a deep bath (HID=1 ,25). Change in the tracer concentration with time was predicted by numerical modelling. A satisfactory agreement between the computed and experimental results can be obtained by parameter fitting for the average plume rise velocity and effective viscosity in the mathematical model. It is presumedthat turbulent mass transfer of the tracer is dominant in the deep bath, whi]e the convection of liquid is more effective in the homogenization in the sha]low bath. KEYWORDS: perfect mixing time; cold model; side and inclined injection; numerical modelling; turbulent mass transfer; convection. 1.

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Experimental measurement and numerical computation of velocity and turbulence parameters in a heated liquid metal system

Cited by 12 publications

References 10 publications

Effect of Arc Length on Fluid Flow and Mixing Phenomena in AC Electric Arc Furnaces

Effect of Arc Length on Fluid Flow and Mixing Phenomena in AC Electric Arc Furnaces

Establishment time of liquid flow in a bath agitated by bottom gas injection

Mixing Phenomena in a Liquid Bath Stirred by Gas Jets through Side and Inclined Nozzles.

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