Vorticity Waves in Shear Flows
Journal Title: INCAS BULLETIN - Year 2015, Vol 7, Issue 1
Abstract
The main purpose of this paper is to bring about the vorticity-creation process at the boundary surfaces on one hand and to understand the interaction of concentrated vorticity structures on the shear flow on the other hand. The paper address the simulation of flow visualization of the vortical structures accounting for both the circulation and the degree of concentration of vorticity via the exact nonlinear solution of Stuart for an inviscid unsteady mixing layer. At a fixed volume of circulation an increased concentration of vorticity is provoked by decreasing the area containing most of the vorticity, and then it spreads over an increased area of the flow. A concentration parameter characterizing vorticity is defined and flow patterns, representing waves travelling in the flow direction are found for different combinations of vorticity concentration and circulation.
Authors and Affiliations
DUMITRESCU Horia , CARDOS Vladimir
Keywords
Related Articles
- EP ID EP116631
- DOI 10.13111/2066-8201.2015.7.1.5
- Views 89
- Downloads 0
Intelligent control of HVAC systems. Part I: Modeling and synthesis
This is the first part of a work on intelligent type control of Heating, Ventilating and Air-Conditioning (HVAC) systems. The study is performed from the perspective of giving a unitary control method to ensure high ener...
Attitude Control Synthesis for Small Satellites Using Gradient Method. Part I - Nonlinear Equations
The paper presents some aspects for synthesis of small satellites attitude control. The satellite nonlinear model presented here will be with six degrees of freedom. After movement equation linearization the stability an...
Numerical simulations of synthetic jets in aerodynamic applications
This paper presents numerical simulations of synthetic jets in aerodynamic applications. We’ve analyzed the formation of isolated synthetic jets, the influence of nozzle geometry and the interaction of synthetic jets wit...
Project management templates used to plan and manage product and service provision. Case study
This article presents a compilation of methods and techniques that help manage projects successfully and which are developed by IAQG - International Aerospace Quality Group. Project management is a structured process tha...
On Lean Turbulent Combustion Modeling
This paper investigates a lean methane-air flame with different chemical reaction mechanisms, for laminar and turbulent combustion, approached as one and bi-dimensional problem. The numerical results obtained with Canter...