Free surface deformation of a test fluid induced by steady and oscillatory thermocapillary flow in a small cylindrical container (diameter = 4.8 mm) is studied experimentally. The fluid (2 Cs oil) is heated by a cylindrical wire (diameter = 0.48 mm) placed along the centerline of the cylinder. The relative displacement and oscillation frequency of free surface are measured in a radial cross-section for various applied temperature differences. It is found that the amplitude of the free surface height oscillations is large near the heater and the cold wall and relatively small in the middle part. The frequency of the free surface oscillations is same as the frequency of the temperature oscillations. Based on these data, the free surface motion during oscillations is delineated.
An experimental study of free surface deformation in oscillatory thermocapillary flow
Acta Astronautica ; 35 , 8
01.04.1995
Sonstige
Keine Angabe
Englisch
An experimental study of free surface deformation in oscillatory thermocapillary flow
Online Contents | 1995
|Oscillatory thermocapillary flows
Elsevier | 1993
|Oscillatory Thermocapillary Flows
Online Contents | 1993
|