A possible mechanism for the appearance of turbulence in viscous laminar flow with transverse shear
Abstract
The laminar shear flow of a viscous fluid is compared to a medium with a metastable phase state. The realization of the latter's eddy-forming potential is hindered by the absence of 'nuclei' of a new 'eddy phase' in the form of nondeformed regions of flow. With regard to an actual fluid, two levels of superposition of a discrete structure with nondeformed elements can be distinguished, namely a macrolevel arising from the presence of microparticle impurities and a microlevel associated with molecular structure. The consequences of the superposition on a viscous flow taken to be routinely pure and homogeneous of an extremely rarefied discrete structure of microparticles are considered in connection with the general laws governing the appearance of turbulent flow.
- Publication:
-
Akademiia Nauk Gruzii Soobshcheniia
- Pub Date:
- February 1982
- Bibcode:
- 1982SoGru.105..277S
- Keywords:
-
- Flow Distribution;
- Laminar Flow;
- Shear Flow;
- Turbulent Flow;
- Viscous Flow;
- Computational Fluid Dynamics;
- Metastable State;
- Microparticles;
- Molecular Structure;
- Vortices;
- Fluid Mechanics and Heat Transfer