HYDRODYNAMICS OF HORIZONTAL STRIPE
Abstract
The technique of consistent analysis of the dynamics and structure of strong and weak stratified and potential and actual homogeneous fluids flows is developed on basis of the fundamental equations set without introducing any additional hypotheses, constants and relations. Using the open source software flow pattern around a plate is calculated for the first time in a gen- eral formulation in a wide range of Reynolds numbers 1<Re <105. Structures of unsteady fields of pressure and density (as well as their gradients), velocity, vorticity and energy dissipation rate, which arise around a horizontal plate moving with a constant velocity are analysed. Forces and moments acting on the plate are calculated for cases of its different geometrical modifications. The processes of vortex formation that violate stationarity of the flow are investigated in the regions of high pressure and density gradients in the vicinity of the plate edges and in the areas of interacting flow components,. The calculation results are in a qualitative agreement with the data of laboratory modeling of stratified flows and the calculations of boundary layer flow of incompressible fluid over half-plane in the limit of actual homogeneous fluid.
Key words: stratified fluid, horizontal stripe, vortexes
