Simulations of the Wing-Body Junction Flow

The simulation of a flow around the wing-body junction is performed with different numerical approaches. Provided that a uniform flow with reference speed of 27 m/s and a $$0.5T$$ thick boundary layer runs onto a $$T$$ thick wing appendage, a horse-shoe vortex is formed, bending downstream along the junction line. The flow is modeled with RANS approach using SST and DRSM SSG-LRR- $$\omega$$ closures, resulting in a steady-state solution despite the use of an unsteady time integration strategy. Also, the IDDES approach is used with underlying SA, SST and the SSG-LRR- $$\omega$$ models. This set of solutions gives unsteady flow pattern with bimodality due to horseshoe vortex swaying. All solutions differ from each other and from underlying experiment in terms of averaged flow pattern and statistical properties of the flow.