Response of simple turbulence models to step changes of slip velocity

Direct numerical simulation of a non-equilibrium three-dimensional turbulent boundary layer over a flat plate

“…On the other hand, there is rather quick recovery to a 2DTBL in the inner region. In this context, Bassina, Strelets & Spalart (2001) examined the performance of several eddy viscosity models, i.e. SA (Spalart & Allmaras 1994) and SST (Menter 1994) models, in the recovery region of the present flow.…”

Unsteady turbulent flow with sudden pressure gradient changes

“…Recently, Chung and Sung [3] found that, using a spatially-developing long channel flow DNS, the downstream relaxation was anisotropic. Hence, the relaxation process is difficult to predict using turbulence models [5].…”

A numerical study of drag reduction by mini-belts in a smooth wall turbulent boundary layer

“…Arguably, this may be due to the fact that the calculation does not take into account the momentum flux in and out of the gaps between the belt and the stationary plates. Bassina et al (11) performed a calculation with an injection of momentum at the gap between the upstream stationary plate and the moving wall. They found an improvement in the prediction of both the mean velocity and Reynolds shear stress distributions in the region which corresponds to the initial response to the change in the slip condition.…”

“…Moving walls provided by continuous belts have also been used (5)(6)(7)(8)(9) to study a shear-free turbulent boundary layer. It is also worth noting the numerical work done on moving wall by Perot and Moin (10) and Bassina et al (11) . The former used direct numerical simulations to study the role of shear in the wall/turbulence interaction.…”