000021283 001__ 21283
000021283 005__ 20170522124347.0
000021283 04107 $$aeng
000021283 046__ $$k2017-05-15
000021283 100__ $$aDočkal, K.
000021283 24500 $$aFLUID FLOW MEASUREMENTS OF 5P4E BY PARTICLE TRRACKING VELOCIMETRY

000021283 24630 $$n23.$$pEngineering Mechanics 2017
000021283 260__ $$bBrno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno
000021283 506__ $$arestricted
000021283 520__ $$2eng$$aLubricant flow in an elastohydrodynamic contact is investigated by new methodology based on particle tracking velocimetry. Measurement method provides positions of silver nanoparticles dissolved in the lubricant through several images captured by high speed camera. These are connected, in places of high probability of correct detection of identical particle on multiple images. Connected positions are linearly fitted to get average speed and after that statistically processed to obtain velocity profile. This method was applied on 5P4E base fluid, characterized by high viscosity and pressure sensitivity. Experimental results provide evidence about slide to roll ratio influence on the velocity profiles under piezoviscouse conditions. At low slide to roll ratios the profile shape match plug flow model with highly viscous core and slip on the solid-liquid interfaces. As the slide to roll ratio increases, corresponding velocity profile curvature is reduced.

000021283 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021283 653__ $$aElastohydrodynamic Lubrication, Rheology, Fluid Flow, Particle Tracking Velocimetry.

000021283 7112_ $$aEngineering Mechanics 2017$$cSvratka, CZ$$d2017-05-15 / 2017-05-18$$gEM2017
000021283 720__ $$aDočkal, K.$$iHartl, M.$$iKřupka, I.$$iŠperka, P.
000021283 8560_ $$ffischerc@itam.cas.cz
000021283 8564_ $$s908411$$uhttps://invenio.itam.cas.cz/record/21283/files/0274.pdf$$yOriginal version of the author's contribution in proceedings, page 274, section FLU.
000021283 962__ $$r21225
000021283 980__ $$aPAPER