Diffusion measurements using the shear cell technique: Investigation of the role of Marangoni convection by pre-flight experiments on the ground and during the Foton M2 mission

Raluca Roşu-Pflumm; Wolfgang Wendl; German Müller-Vogt; Shinsuke Suzuki; K. H. Kraatz; G. Frohberg

doi:10.1016/j.ijheatmasstransfer.2009.06.001

Diffusion measurements using the shear cell technique: Investigation of the role of Marangoni convection by pre-flight experiments on the ground and during the Foton M2 mission

Raluca Roşu-Pflumm^*, Wolfgang Wendl, German Müller-Vogt, Shinsuke Suzuki, K. H. Kraatz, G. Frohberg

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

An experimental investigation on the disturbing influence of the solutal Marangoni convection during diffusion measurements is presented. We used the systems Sn-Bi, Pb-Ag and Sn-In with decreasing differences in surface tension. For all systems we measured surface tension and - under varying free surface conditions - diffusion coefficients. We succeeded in measuring diffusion coefficients on the ground under nearly non-free surface conditions. The results are compared with the results of the FOTON M2-satellite mission with similar μg-experiments. We show that temperatures from around 400 °C to about 800 °C and the degree of free surfaces influences strongly the measured value for the diffusion coefficient.

Original language	English
Pages (from-to)	6042-6049
Number of pages	8
Journal	International Journal of Heat and Mass Transfer
Volume	52
Issue number	25-26
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2009.06.001
Publication status	Published - 2009 Dec
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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10.1016/j.ijheatmasstransfer.2009.06.001

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Roşu-Pflumm, R., Wendl, W., Müller-Vogt, G., Suzuki, S., Kraatz, K. H., & Frohberg, G. (2009). Diffusion measurements using the shear cell technique: Investigation of the role of Marangoni convection by pre-flight experiments on the ground and during the Foton M2 mission. International Journal of Heat and Mass Transfer, 52(25-26), 6042-6049. https://doi.org/10.1016/j.ijheatmasstransfer.2009.06.001

Diffusion measurements using the shear cell technique : Investigation of the role of Marangoni convection by pre-flight experiments on the ground and during the Foton M2 mission. / Roşu-Pflumm, Raluca; Wendl, Wolfgang; Müller-Vogt, German; Suzuki, Shinsuke; Kraatz, K. H.; Frohberg, G.

In: International Journal of Heat and Mass Transfer, Vol. 52, No. 25-26, 12.2009, p. 6042-6049.

Research output: Contribution to journal › Article › peer-review

Roşu-Pflumm, R, Wendl, W, Müller-Vogt, G, Suzuki, S, Kraatz, KH & Frohberg, G 2009, 'Diffusion measurements using the shear cell technique: Investigation of the role of Marangoni convection by pre-flight experiments on the ground and during the Foton M2 mission', International Journal of Heat and Mass Transfer, vol. 52, no. 25-26, pp. 6042-6049. https://doi.org/10.1016/j.ijheatmasstransfer.2009.06.001

Roşu-Pflumm R, Wendl W, Müller-Vogt G, Suzuki S, Kraatz KH, Frohberg G. Diffusion measurements using the shear cell technique: Investigation of the role of Marangoni convection by pre-flight experiments on the ground and during the Foton M2 mission. International Journal of Heat and Mass Transfer. 2009 Dec;52(25-26):6042-6049. https://doi.org/10.1016/j.ijheatmasstransfer.2009.06.001

Roşu-Pflumm, Raluca ; Wendl, Wolfgang ; Müller-Vogt, German ; Suzuki, Shinsuke ; Kraatz, K. H. ; Frohberg, G. / Diffusion measurements using the shear cell technique : Investigation of the role of Marangoni convection by pre-flight experiments on the ground and during the Foton M2 mission. In: International Journal of Heat and Mass Transfer. 2009 ; Vol. 52, No. 25-26. pp. 6042-6049.

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abstract = "An experimental investigation on the disturbing influence of the solutal Marangoni convection during diffusion measurements is presented. We used the systems Sn-Bi, Pb-Ag and Sn-In with decreasing differences in surface tension. For all systems we measured surface tension and - under varying free surface conditions - diffusion coefficients. We succeeded in measuring diffusion coefficients on the ground under nearly non-free surface conditions. The results are compared with the results of the FOTON M2-satellite mission with similar μg-experiments. We show that temperatures from around 400 °C to about 800 °C and the degree of free surfaces influences strongly the measured value for the diffusion coefficient.",

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AB - An experimental investigation on the disturbing influence of the solutal Marangoni convection during diffusion measurements is presented. We used the systems Sn-Bi, Pb-Ag and Sn-In with decreasing differences in surface tension. For all systems we measured surface tension and - under varying free surface conditions - diffusion coefficients. We succeeded in measuring diffusion coefficients on the ground under nearly non-free surface conditions. The results are compared with the results of the FOTON M2-satellite mission with similar μg-experiments. We show that temperatures from around 400 °C to about 800 °C and the degree of free surfaces influences strongly the measured value for the diffusion coefficient.

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Diffusion measurements using the shear cell technique: Investigation of the role of Marangoni convection by pre-flight experiments on the ground and during the Foton M2 mission

Abstract

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