Simulation of three Refrigerator PUR Filling and Foaming Processes
Figure 1: PUR Refrigerator: Filling process is a mixure initial pressing and foaming
Figure 2: Refrigerator foaming with moving needle as injector
Figure 3: Refrigerator PUR foam filling with two inlets
Figure 4: Air entrapment generation, velocity field and free surface flow near cooling cutouts, computed with NOGRID points
In this case study we present the simulation of three possible refrigerator PUR filling and foaming processes (injection types), even if not all are in productive use:
In the left top example (figure 1) the simulation starts with PUR liquid inside an open cavity. The cavity closes and presses the foaming liquid into the refrigerator wall.
In the middle example the fluid is injected by a pipe which moves outwards during the filling process.
The left bottom example shows a refrigerator where the PUR is injected using two inlets at the lower side. The foaming process starts when the PUR enters the cavity, the filling is done after two seconds.
Simulate any conceivable refrigerator geometry
- computation is in full 3D solving complete Navier-Stokes-Equations
- easy and intuitive setup of the FSI (Fluid-Structure-Interaction) case
- free definable PUR material properties by equations or curves
- polyurethane (PUR) injection by one or more inlets
- open or closed domains including moving of additional parts
- moving of the mixing head
Easy and fast modelling: Build geometry, mesh boundary, setup the case and start computation
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