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Experimental observations of Soret-driven convection in the transient diffusive boundary layer

Title data

Messlinger, Stephan ; Kramer, Christoph ; Schmied, Jürgen J. ; Winkel, Florian ; Schöpf, Wolfgang ; Rehberg, Ingo:
Experimental observations of Soret-driven convection in the transient diffusive boundary layer.
In: Physical Review E. Vol. 88 (2013) . - 053019.
ISSN 1550-2376
DOI: https://doi.org/10.1103/PhysRevE.88.053019

Abstract in another language

The onset of transient Soret-driven convection is investigated experimentally in a colloidal suspension of thermosensitive nanoparticles by the shadowgraph technique and by particle tracking observations. From the shadowgraph images, the concentration profile is reconstructed, giving evidence of a convective motion inside the transient boundary layer. Furthermore, the latency times for the convection onset are extracted from the measurements. The results point out that particle tracking is superior to the shadowgraph method for detecting the onset of convection. The onset latency times obtained from these experiments obey scaling laws which are in accordance with the predictions from theoretical treatments.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V > Chair Experimental Physics V - Univ.-Prof. Dr. Ingo Rehberg
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics V
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 06 Mar 2014 12:10
Last Modified: 24 Jan 2019 11:10
URI: https://eref.uni-bayreuth.de/id/eprint/171