Resonance of a liquid column in a capillary tube

1997 ◽  
Vol 48 (3) ◽  
pp. 424 ◽  
Author(s):  
M. Hilpert; ◽  
D. Stopper; ◽  
G.H. Jirka;
Keyword(s):  
Capillary Tube ◽  
Liquid Column

scholarly journals Surface tension of aqueous binary mixtures under the supercooled conditions – Development of the measuring technique and preliminary data for water + lower alcohols

2018 ◽  
Vol 180 ◽  
pp. 02118 ◽  
Author(s):  
Václav Vinš ◽  
Jiří Hykl ◽  
Zbyněk Nikl ◽  
Miroslav Čenský ◽  
Jan Hrubý
Keyword(s):  
Surface Tension ◽  
Binary Mixtures ◽  
Capillary Tube ◽  
Pure Water ◽  
Capillary Rise ◽  
Solute Concentration ◽  
Liquid Column ◽  
Measuring Technique ◽  
Aqueous Mixtures ◽  
Experimental Apparatus

An experimental apparatus originally developed for the measurement of surface tension of supercooled water was modified such that it allows for measurement of binary aqueous mixtures. The measuring principle based on the capillary rise technique is similar to that employed in the previous measurements with pure water [J. Hrubý et al., J. Phys. Chem. Lett. 5 (2014) 425 and V. Vinš et al., J. Phys. Chem. B 119 (2015) 5567]. The temperature dependence of the surface tension is determined from the measured height of the liquid column elevated in a vertical capillary tube with an inner diameter of 0.32 mm. The aqueous liquid rises to a height of 60 mm to 95 mm depending on the solute concentration and the temperature. Preliminary tests performed with the binary mixtures of water with methanol, ethanol, and n-propanol at various concentrations and temperatures down to –28 °C approved functionality of the measuring technique. Some difficulties, such as influence of impurities on the liquid column elevation or formation of bubbles in the liquid column, were observed. The experimental apparatus is further being modified in order to obtain more accurate data for various aqueous mixtures.

VIBRATION CONTROL OF SLENDER STRUCTURES WITH OPTIMIZED LIQUID COLUMN VIBRATION ABSORBERS

2019 ◽  
Author(s):  
Jéssica Carolina Barbosa Vieira ◽  
Thiago da Silva ◽  
Carlos Alberto Bavastri
Keyword(s):  
Vibration Control ◽  
Liquid Column ◽  
Vibration Absorbers ◽  
Slender Structures
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