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Second viscosity of fluids determination
Second viscosity of fluids determination In the contribution are introduced the relations for measurement of the second viscosity for lowly compressible fluids, for which is valid the equation . The second...
BK - Mechanika tekutin
- 2002 •
- D
Rok uplatnění
D - Stať ve sborníku
WAVE EQUATION OF THE LIQUID AND THE SECOND VISCOSITY
Relation for the tension tensor of the compressible liquid, which depends on the second fluid viscosity, is presented in the paper. There are shown different wave shapes in second fluid viscosity dependence and the...
BK - Mechanika tekutin
- 2003 •
- D
Rok uplatnění
D - Stať ve sborníku
Second Viscosity of Fluids
Constitutive equation of homogeneous and isotropic fluid is derived using the first and second law of thermodynamics, Gibbs equation and force equilibrium equation. This approach enables to define the second viscosity of fl...
BK - Mechanika tekutin
- 2006 •
- D
Rok uplatnění
D - Stať ve sborníku
THE SECOND VISCOSITY OF FLUIDS
This paper is focused on the study of the second viscosity of the fluids with the emphasis on the pressure pulsations solution in the hydraulic systems. The methodic comes out from the nonequilibrium thermodynamics....
BK - Mechanika tekutin
- 2009 •
- D
Rok uplatnění
D - Stať ve sborníku
Sound velocity and second viscosity experimental setting
The measurements data evaluation of the sound velocity and second viscosity in the pressure dependence for the 20 kHz frequency is presented in the paper. On the measuring device was set the static pressure of liquid in the pipe fro...
BK - Mechanika tekutin
- 2007 •
- D
Rok uplatnění
D - Stať ve sborníku
Influence of Second Viscosity and damping in material of Pipe on Eigen-Frequency of Liquid in Pipe
00...
BK - Mechanika tekutin
- 2002 •
- D
Rok uplatnění
D - Stať ve sborníku
1-D Mathematical model of high-frequency pressure oscillations induced by RSI including an influence of fluid second viscosity
At the modeling of high-frequency pressure oscillations the damping function is decisive. Up to now it was assumed that the damping is given by the first or the second power of discharge. In this paper the damping model including the influen...
BK - Mechanika tekutin
- 2002 •
- D
Rok uplatnění
D - Stať ve sborníku
Inner Damping of Water in Conduit of Hydraulic Power Plant
is dissipated in the system, and this corresponds to the second viscosity of water on the determination of the second viscosity of water in a conduit. The mathematical apparatus tests in a water storage power plan...
Energy and fuels
- 2021 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Bulk Viscosity - Constitutive Equations
The work is focused on the study of bulk viscosity of liquids. The methodology is based on non-equilibrium thermodynamics. Using its laws the irreversible stress tensor is derived and two viscosities depending on the strain rate ten...
BK - Mechanika tekutin
- 2011 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Influence of the steady flow on pressure mode shape in pipe
Report presents derivation of the relations for pressure pulsations computation. Solution of the mathematical model is performed analytically and using the transfer matrix method. Influence of the second viscosity is taken into acco...
BK - Mechanika tekutin
- 2003 •
- Vx
Rok uplatnění
Vx - Nezařazeno - Výzkumná zpráva obsahující utajované informace (takový výsledek lze do RIV vložit pouze v případě, že zpráva obsahuje utajované informace a pole R12 = U), nebo souhrnná výzkumná zpráva
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