Convective Temperature Fluctuations in Liquid Gallium in Dependence on Static and Rotating Magnetic Fields

Autor:	K. W. Benz, P. Dold
Rok vydání:	1995
Předmět:	Convection Condensed matter physics Field (physics) Chemistry Prandtl number chemistry.chemical_element General Chemistry Rayleigh number Convective temperature Atmospheric temperature range Condensed Matter Physics Magnetic field symbols.namesake symbols General Materials Science Gallium
Zdroj:	Crystal Research and Technology. 30:1135-1145
ISSN:	1521-4079 0232-1300
DOI:	10.1002/crat.2170300823
Popis:	The influence of static axial, static transversal, and rotating magnetic fields on convective temperature fluctuations in liquid gallium (temperature range around 800 °C, Prandtl number 2.5 · 10−3) has been investigated. For a Rayleigh number of 6.3 · 10−5 (ΔT = 10°C, h = 50 mm), convective temperature fluctuations with peak to peak values of 3 °C have been measured. Depending on the strength, the frequency, and the configuration of the field, they could be eliminated to ΔT < 0.01 °C (static axial field of 182 mT), damped to a nearly periodic state with 0.1 °C amplitudes (static transversal field of 45 mT), or reduced to 0.03 °C oscillations by applying a rotating field.
Databáze:	OpenAIRE
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