### 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

*Microgravity Science and Technology*,

*18*(3-4), 155-159.

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

Research output: Contribution to journal › Article

*Microgravity Science and Technology*, vol. 18, no. 3-4, pp. 155-159.

}

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 -