The flow over a normal plate with a long, downstream splitter plate is numerically studied with fine spatial and temporal resolutions. The time-dependent two-dimensional Navier-Stokes equations are integrated in time using a high-order, upwind-biased finite-difference scheme. Calculations are performed at several Reynolds numbers to study the evolution of the unsteady nature of the flow. Steady separated flow has been observed for Reynolds numbers up to 150, after which unsteady vortical structures are seen to develop from the shear layer. The time-mean flow characteristics in the steady and unsteady regimes are described. The calculations are seen to agree fairly well with experimental data at high Reynolds numbers.
ASJC Scopus subject areas
- Computational Mechanics
- Condensed Matter Physics
- Fluid Flow and Transfer Processes