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 language | English |
|---|---|
| Pages (from-to) | 155-159 |
| Number of pages | 5 |
| Journal | Microgravity Science and Technology |
| Volume | 18 |
| Issue number | 3-4 |
| Publication status | Published - 2006 |
| Externally published | Yes |
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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 journal › Article
}
TY - JOUR
T1 - The effect of shear convection on diffusion measurements in liquid metals using the Foton shear cell
AU - Suzuki, Shinsuke
AU - Kraatz, Kurt Helmut
AU - Frohberg, Günter
PY - 2006
Y1 - 2006
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=33845416938&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33845416938&partnerID=8YFLogxK
M3 - Article
VL - 18
SP - 155
EP - 159
JO - Microgravity Science and Technology
JF - Microgravity Science and Technology
SN - 0938-0108
IS - 3-4
ER -