[jchan033]

Hi everyone,

I'm currently doing a 2D simulation on a pipe flow with an encapsulation on it.

Basically, even with convection applied, there was no visible effect. I'm pretty sure there should be some heat transfer. So that is the mystery that I hope you can solve.

It is the first time I'm involving 2 materials/substances (fluid = water, solid = silicon). So I'll outline what I did, perhaps the error was brought forward.

1) Geometry with DesignModeler

-A simple geometry, sliced and formed part (Form a Part) to create two surfaces with interface.

-Two surfaces set as fluid and solid accordingly.

2) Meshing (refer to attached)

-Using Fluid Flow (Fluent) Meshing, created named selection for every edge EXCEPT "overlapping" interface.

-Solid region (encapsulation, silicon) with named selection as solid_flow (the entire surface)
-Fluid region (pipe, water) with named selection as fluid_flow (the entire surface)

3) Set-up

-"Cell Zone Conditions" edited to change materials (air to water, aluminium to silicon)

-Zone "wall_t" selected, BC convection to be h = 5, freestream 295K.
-Zone "inlet" to have constant velocity and a temperature of 313K.
-Zone "silicon_surface" selected, BC constant temperature = 283K.

Steady, asymmetric.

4) Result (Refer to attached)

Thanks for reading!