Author(s): L. I. Vysotsky
Linked Author(s):
Keywords: Reynolds equations; Turbulence model; Turbulence viscosity
Abstract: Some turbulence’s properties result from the new form of Reynolds equation (called by the author«the geometrized»one) are presented. The basis is the representation of pulsating velocity as the pulsation of both it’s magnitude u' and theα' andβ' angles. The turbulence model in case of slight magnitudesα' andβ' (their squared values and their product can be neglected) is considered in detail. In the case the turbulence viscosity coefficient can be represented as a new integral one follows that«mixing way length»entered by L. Prandtle doesn’t exist, but the l is just the distance to the wall. Furthermore, the parameters usually considered as one-pointed second moments are in fact third or fourth ones that can possibly calls for change of methods of their investigation. Some relationships for turbulence parameters in the case of longitudinal uniform flow of incompressible liquid are obtained.
Year: 1999