Measurement of the Viscosity of a Liquid at High Pressures

Matveev, Vyacheslav; Orlov, O. F.; Berg, Viktor

doi:10.1007/s11018-006-0013-z

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Mechanical Measuring Methods For the Measurement Of Liquid V1

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“…al., 2008) are the most popular. Rotational viscometers of Couette type (Matveev et al, 2005) form another group of high-pressure viscometers. The critical parts of rotating viscometers are seals.…”

Section: Mechanical Measuring Methods For the Measurement Of Liquid Vmentioning

confidence: 99%

Application of Acoustic Waves to Investigate the Physical Properties of Liquids at High Pressure

Kiełczyński¹

2010

Acoustic Waves

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Section: Mechanical Measuring Methods For the Measurement Of Liquid Vmentioning

confidence: 99%

Application of Acoustic Waves to Investigate the Physical Properties of Liquids at High Pressure

Kiełczyński¹

2010

Acoustic Waves

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New ultrasonic Bleustein-Gulyaev wave method for measuring the viscosity of liquids at high pressure

Kiełczyński

Szalewski

Siegoczyński

et al. 2008

Review of Scientific Instruments

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In this paper, a new method for measuring the viscosity of liquids at high pressure is presented. To this end the authors have applied an ultrasonic method using the Bleustein-Gulyaev (BG) surface acoustic wave. By applying the perturbation method, we can prove that the change in the complex propagation constant of the BG wave produced by the layer of liquid loading the waveguide surface is proportional to the shear mechanical impedance of the liquid. In the article, a measuring setup employing the BG wave for the purpose of measuring the viscosity of liquids at high pressure (up to 1 GPa) is presented. The results of high-pressure viscosity measurements of triolein and castor oil are also presented. In this paper the model of a Newtonian liquid was applied. Using this new method it is also possible to measure the viscosity of liquids during the phase transition and during the decompression process (hysteresis of the dependence of viscosity on pressure).

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Measurement of the Viscosity of a Liquid at High Pressures

Cited by 2 publications

References 1 publication

Application of Acoustic Waves to Investigate the Physical Properties of Liquids at High Pressure

Application of Acoustic Waves to Investigate the Physical Properties of Liquids at High Pressure

New ultrasonic Bleustein-Gulyaev wave method for measuring the viscosity of liquids at high pressure

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