top of page

Entraining Diffuser 1D & 3D modelling 

Ejector systems are used to passively mix two streams together through turbulent mixing. The mixing takes place between a low and high momentum jets. The entraining diffuser utilizes film cooling and turbulent mixing to cool the exhaust jet.

10.png

01

Temperature contours

Temperature contours for the exhaust and mixing tube.

02

Jet axial velocity vs x-coordinates

As the primary jet is issued into the mixing tube, its velocity drops due to turbulence mixing and momentum transfer.

Screen Shot 2023-04-21 at 9.37.07 PM.png
13.png

03

Surface mesh

Here the surface mesh Triangular elements with prism layers are shown. Prism/inflation layers are required to capture the near wall flow behaviour.

04

Velocity vectors

These velocity vectors are for air that is being sucked into the mixing tube. The semi-cylinder at the inlet reduces the separation bubbles by reducing the angle of attack. 

14.png
bottom of page