Application of a 6-parameter empirical model describing non-monotonous shear viscosity function

0022733 - ÚH 2011 RIV EG eng C - Conference Paper (international conference)
Filip, Petr - David, Jiří - Pivokonský, Radek
Application of a 6-parameter empirical model describing non-monotonous shear viscosity function.
Proceedings of the fourth international conference on heat transfer, fluid mechanics and thermodynamics (HEFAT 2005). Cairo: HEFAT, 2005 - (Meyer, J.; Malan, A.), Article no. FP1. ISBN 1-86854-624-1.
[International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics /4./ HEFAT 2005. Cairo (EG), 19.09.2005-22.09.2005]
R&D Projects: GA AV ČR(CZ) IAA2060202; GA ČR(CZ) GA103/05/2311
Institutional research plan: CEZ:AV0Z20600510
Keywords : empirical model * viscosity * yield stress
Subject RIV: BK - Fluid Dynamics

A new 6-parameter empirical model is applied to a description of non-Newtonian flow situations when shear viscosity function in dependence on shear rate or shear stress exhibits either monotnous or non-monotonous behaviour. For the case of suspnesions with increasing concentration this model enables to express both shear-thinning course of viscosity and its passage to viscoplastic behaviour with a nonzero yield stress. In this respect this new model provides better results in comparison with a preceding model.
Permanent Link: http://hdl.handle.net/11104/0111448