[Tensian]

Dear all,

I am trying to simulate the water spray cooling of a metal piece.

Please find attached an image of my geometry.

I am interested in the cooling produced by the spray droplets in the heated metal piece. I am using DPM.

I am using the following BCs:

INLET: mass flow rate, T=294 K, escape BC for DPM
OUTLET: pressure outlet, T=294 K, escape BC for DPM
WALLS (except the walls of the metal piece): no slip, heat flux=0, T=294 K
TARGET PIECE WALLS: no slip, T=1300 K, wall film

Particle type is Inert in this preliminary phase, and break up is considered. Diameter distribution is uniform and drag law is spherical. For the parcel definitions I have used Parcel Release Method= constant number, fixed to 200000 particles in each parcel. Injection type is "surface".

The simulation runs and I obtain convergence, but when I have a look to the results I see that the target surfaces have not changed their temperature, and particles are getting hot instead of colding surfaces.

What I am doing wrong? BCs? Injection?

Thanks in advance for any kind of help.

Best,

Tensian

[Tensian]

A mistake:

Heat flux=0 in the walls. T=294 K was a previous try...DPM BC in these walls is escape as well.

Thanks!