Simulation of collagen solution flow in rectangular capillary

0466634 - ÚH 2018 RIV CZ eng C - Conference Paper (international conference)
Kysela, Bohuš - Skočilas, J. - Zitny, R. - Stancl, J. - Houska, M. - Landfeld, A.
Simulation of collagen solution flow in rectangular capillary.
EPJ Web of Conferences. Vol. 143. Les Ulis: EDP Sciences, 2017 - (Dančová, P.), č. článku 02063. E-ISSN 2100-014X.
[Experimental Fluid Mechanics 2016. Mariánské Lázně (CZ), 15.11.2016-18.11.2016]
Grant - others:GA ČR(CZ) GA14-23482S
Institutional support: RVO:67985874
Keywords : collagen * viscoelastic model * convergent-divergent capillary
OECD category: Fluids and plasma physics (including surface physics)
https://www.epj-conferences.org/articles/epjconf/pdf/2017/12/epjconf_efm2017_02063.pdf

The viscoelastic properties of foods and polymers can be evaluated from flow of the material in capillary with specified dimension and shape. The extrusion rheometer equipped by capillary with rectangular cross-section was used for determination of the rheological behaviour of water collagen solution. The measurements of the axial profiles in longitudinal direction of the total stresses at capillary wall were performed for various shear rates. The linear viscoelastic model of Oldroyd B type: White-Metzner model was used for simulation of fluid flow in OpenFOAM software package. The simulations describe the effect of relaxation time on wall total stress in convergent-divergent capillary.
Permanent Link: http://hdl.handle.net/11104/0276251