The effect of shear convection on diffusion measurements in liquid metals using the Foton shear cell

Shinsuke Suzuki, Kurt Helmut Kraatz, Günter Frohberg

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The shear convection in the Foton shear cell was investigated quantitatively and interpreted as an additional diffusion-like mixing. Diffusion experiments were done under 1g and μg (Foton-M2 mission June 2005). Since the measured mean square diffusion depth (MSDD) is a linear function of time, the offset represents the additional mass transport (and the averaging effect due to the analysis by Atom Absorption Spectroscopy, AAS). The offset is 1-3% of the MSDD and can be used to eliminate this systematic error. The influence of the liquid's viscosity on the shear convection is discussed, using a simple fluid dynamical model. The absence of buoyancy convection in 1g-experiments was shown by comparison with the μg-result.

Original languageEnglish
Pages (from-to)155-159
Number of pages5
JournalMicrogravity Science and Technology
Volume18
Issue number3-4
Publication statusPublished - 2006
Externally publishedYes

Fingerprint

Liquid Metal
liquid metals
Liquid metals
Convection
convection
shear
Cell
cells
Mean Square
Viscosity of liquids
Absorption Spectroscopy
Mass Transport
Systematic Error
Systematic errors
Buoyancy
Fluid Model
Dynamical Model
Absorption spectroscopy
buoyancy
systematic errors

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Mechanics of Materials
  • Computational Mechanics

Cite this

The effect of shear convection on diffusion measurements in liquid metals using the Foton shear cell. / Suzuki, Shinsuke; Kraatz, Kurt Helmut; Frohberg, Günter.

In: Microgravity Science and Technology, Vol. 18, No. 3-4, 2006, p. 155-159.

Research output: Contribution to journalArticle

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