Section: New Results

DNS of a jet in crossflow

One main achievement of this year is to have done our first DNS computations at third order with the Aerosol software. Two configurations of jet in cross flow have been computed: one with a hole direction aligned with the main flow direction (Fig. 3 -left), and another one with a 90-degree jet skidding (Fig. 3 -right). The first case has been validated by using analytical models of jet trajectory, and has also been compared with experiments made with our experimental bench MAVERIC. The comparison of experiments and DNS showed a good agreement.

The DNS database includes:

  • The instantaneous flow at the vertices of the mesh.

  • the instantaneous flow at some probes.

  • The mean flow.

  • The value of the Reynolds stress tensor in all the degrees of freedom.