Experimental study on the sensitivity and accuracy of electric potential local flow measurements

Cramer, A.; Varshney, Kapil; Gundrum, Thomas; Gerbeth, Günter

doi:10.1016/j.flowmeasinst.2005.08.006

Cited by 32 publications

(16 citation statements)

References 19 publications

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“…A competitive flow measuring technique such as potential difference probes [32] would allow to increase the spatial resolution at selected measuring stations. In order to better cope with the limited spatial resolution of UDV, it might also be considered to use a container with a significantly larger diameter.…”

Section: Discussionmentioning

confidence: 99%

The sensitivity of a travelling magnetic field driven flow to axial alignment

Cramer

Pal

Koal

et al. 2011

Journal of Crystal Growth

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Section: Discussionmentioning

confidence: 99%

The sensitivity of a travelling magnetic field driven flow to axial alignment

Cramer

Pal

Koal

et al. 2011

Journal of Crystal Growth

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“…Potential probes can be applied for local measurement of the velocity in the bulk liquid. It is an invasive method, but offers the highest sampling rate of those three techniques presented here . Therefore, the potential probes enable to investigate highly turbulent flows.…”

Section: Methodsmentioning

confidence: 99%

Use of Cold Liquid Metal Models for Investigations of the Fluid Flow in the Continuous Casting Process

Timmel

Wondrak

Röder

et al. 2014

steel research int.

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The measurement of flow quantities in a real steal caster is still a huge challenging task. Up to now, only some rough velocity information was obtained from casting plants with liquid steel. More insight into the casting process can be achieved by model experiments, which operate with low melting point liquid metals. The advantage of such cold metal laboratory experiments consists in the capability to obtain quantitative flow measurements with a reasonable spatial and temporal resolution. They are therefore an important tool to investigate the flow structure and related transport processes in melt flows relevant for metallurgical applications. We present two experimental facilities for modeling the continuous casting process of steel. The parameters and dimensions of the facilities will be given. LIMMCAST, the bigger setup, is using the alloy SnBi and works at temperatures of 200-4008C. Possibilities for flow investigations in tundish, submerged entry nozzle, and mould will be discussed. Next, the smaller set-up Mini-LIMMCAST will be presented. This experimental setup works with the alloy GaInSn, which is already liquid at room temperature. During the last decade, new measurement techniques have been established for detecting the velocities in liquid metal flows and which are operating in the considered temperature ranges. By this, it is now possible to do experimental investigations for a satisfying characterization of flow quantities in the two models. A selection of results from both experimental setups will be shown. These flow measurements deliver a valuable experimental database being suitable for validation of numerical simulations.

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“…Potential probe, also known as the Vives probe [11,2], is another commonly used technique for local velocity measurements in low-melting-point liquid met-als. The probe shown in Fig.…”

Section: Potential Probementioning

confidence: 99%

Velocity measurements in the liquid metal flow driven by a two-phase inductor

Pedcenko¹,

Bojarēvičs²,

Priede³

et al. 2013

Exp Fluids

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We present the results of velocity measurements obtained by ultrasonic Doppler velocimetry and local potential probes in the flow of GaInSn eutectic melt driven by a two-phase inductor in a cylindrical container. This type of flow is expected in a recent modification to the floating zone technique for the growth of small-diameter single intermetallic compound crystals. We show that the flow structure can be changed from the typical two toroidal vortices to a single vortex by increasing the phase shift between the currents in the two coils from 0 • to 90 • degrees. The latter configuration is thought to be favourable for the growth of single crystals. The flow is also computed numerically, and a reasonable agreement with the experimental results is found. The obtained results may be useful for the design of combined two-phase electromagnetic stirrers and induction heaters for metal or semiconductor melts.

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Experimental study on the sensitivity and accuracy of electric potential local flow measurements

Cited by 32 publications

References 19 publications

The sensitivity of a travelling magnetic field driven flow to axial alignment

The sensitivity of a travelling magnetic field driven flow to axial alignment

Use of Cold Liquid Metal Models for Investigations of the Fluid Flow in the Continuous Casting Process

Velocity measurements in the liquid metal flow driven by a two-phase inductor

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