Discrete-vortex model of flow over a semi-infinite plate in a fluctuating field
Abstract
High Reynolds number flows over a flat semiinfinite plate with rectangular leading edge are described by the two-dimensional inviscid incompressible flow equations. These equations are solved numerically using a discrete-vortex model. As a refinement to previous models of this type a fluctuating irrotational field is added. The effect of this on the turbulent separation bubble and large-scale vortex formation is investigated. The results are compared with those obtained experimentally using sound as the fluctuating field. The close relationship between pressure fluctuations along the plate and the positions of the large-scale structures is observed. The interesting phenomenon of vortex pairing is also predicted by the model.
- Publication:
-
IN: Numerical methods in laminar and turbulent flow; Proceedings of the Fourth International Conference
- Pub Date:
- 1985
- Bibcode:
- 1985nmlt.proc..696H
- Keywords:
-
- Computational Fluid Dynamics;
- Flat Plates;
- Flow Deflection;
- Inviscid Flow;
- Two Dimensional Flow;
- Vortices;
- Discrete Functions;
- Flow Distribution;
- High Reynolds Number;
- Incompressible Flow;
- Leading Edges;
- Separated Flow;
- Turbulent Flow;
- Fluid Mechanics and Heat Transfer