Project detail

Fluids second viscosity

Duration: 01.01.2009 — 31.12.2011

Funding resources

Czech Science Foundation - Standardní projekty

- whole funder (2009-01-01 - 2011-12-31)

On the project

Projekt je zaměřen na studium druhé viskozity tekutin se zaměřením na řešení tlakových pulsací v hydraulických systémech. Metodika vychází z nerovnovážné termodynamiky.Využitím jejích zákonů bude odvozen nevratný tenzor napětí a definovány dvě viskozity v závislosti na deviátoru tenzoru rychlosti deformace a kulovém tenzoru rychlosti deformace.Studiem šíření tlakových vln bude stanovena objemová viskozita zvolených tekutin , zejména vody, vzduchu a minerálního oleje.Konstitutivní vztahy budou zahrnuty do softwaru pro řešení tlakových pulsací tekutin.

Description in English
The project is focused on the study of second viscosity of liquids with specialization to the pressure pulsation in the hydraulic systems. The methodic comes out the disequilibrium thermodynamics. Using the thermodynamics laws will be derived the irreversible stress tensor and will be defined two viscosities in the dependence of the strain rate deviator tensor and the strain rate spherical tensor. By the pressure wave propagation will be set the volume viscosity of chosen fluids; especially water, air and mineral oil. The constitutive equations will be adding into the software for the fluids pressure pulsations.

Keywords
druhá viskozita, objemová viskozita, pulzace, tlak

Key words in English
second viscosity; bulk viscosity; pulsation; pressure

Mark

GA101/09/1716

Default language

Czech

People responsible

Habán Vladimír, doc. Ing., Ph.D. - principal person responsible

Units

Victor Kaplan Dept. of Fluid Engineering
- beneficiary (2009-01-01 - 2011-12-31)

Results

HIMR, D.; HABÁN, V.; POCHYLÝ, F. Sound Speed in the Mixture Water - Air. In Engineering Mechanics 2009. Svratka: 2009. p. 393-401. ISBN: 978-80-86246-35-2.
Detail

HIMR, D.; HABÁN, V.; POCHYLÝ, F. Sound Speed in the Fluid - Gas Mixture. In Proceedings of the 3rd IAHR International Meeting of the Workgroup on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems. Brno: 2009. p. 561-570. ISBN: 978-80-214-3947-4.
Detail

FIALOVÁ, S.; POCHYLÝ, F.; RINKA, L. The boundary condition of the adhesive forces effect on the solid/liquid interface. In Engineering Mechanics 2009- book of extended abstracts. První edice, 2009. Praha: Akademie věd České republiky, 2009. p. 48-53. ISBN: 978-80-86246-35-2.
Detail

HIMR, D.; HABÁN, V. Simulation of Low Pressure Water Hammer. In IOP Conference Series-Earth and Environmental Science. IOP Conference Series: Earth and Environmental Science. IOP Publishing Ltd., 2010. p. 1-8. ISSN: 1755-1315.
Detail

FIALOVÁ, S.; POCHYLÝ, F.; RINKA, L. The Boundary Conditions of the Adhesive Forces Effect on the Solid/Liquid Interface. In Engineering mechanics 2009 - book of extended abstracts. první vydání, 2009. Praha: Akademie věd České republiky, 2009. p. 241-246. ISBN: 978-80-86246-35-2.
Detail

FIALOVÁ, S.; POCHYLÝ, F.; FEDOR, P. Gels as construction materials. Strojnícky časopis, 2009, vol. 60, 2009, no. 3, p. 161-167. ISSN: 0039-2472.
Detail

POCHYLÝ, F.; HALUZA, M.; KLAS, R. The stability of Y(Q) characteristic curve. In IOP Conference Series-Earth and Environmental Science. IOP Conference Series: Earth and Environmental Science. BRISTOL BS1 6BE, ENGLAND: IOP PUBLISHING LTD, DIRAC HOUSE, TEMPLE BACK, 2010. p. 685-690. ISSN: 1755-1307.
Detail

HABÁN, V.; POCHYLÝ, F.; FIALOVÁ, S. THE SECOND VISCOSITY OF FLUIDS. In Engineering Mechanics 2009. Prague, Czech Republic: Institute of Theoretical and Applied Mechanics, v.v.i., 2009. p. 349-359. ISBN: 978-80-86246-35-2.
Detail

Responsibility: Habán Vladimír, doc. Ing., Ph.D.