Dropping liquid from a funnel
Case directory
$FOAM_TUTORIALS/lagrangian/icoUncoupledKinematicParcelFoam/hopper/hopperEmptying
Summary
We calculate the dropping liquid from the funnel.
The model geometry is shown in the figure below. The velocity is set to gradient zero at the region "inlet" and "outlet", and all other boundaries of the calculation domain are walls (no-slip walls). The gravity direction is negative Y, and the calculation is performed for 5 seconds.
Model geometry
The initial state of the Lagrangian particles is copied from another tutorial "Dropping liquid from a funnel (Calculating the initial state)". The properties of the Lagrangian particles are defined in the file "kinematicCloudProperties" in the directory "constant", and the gravity acceleration is defined in the file "g" in the same directory.
The meshes are as follows.
Meshes
The calculation result is as follows.
Initial state of Lagrangian particles
Lagrangian particles at 2.5 sec
Lagrangian particles at 5.0 sec
Visualization
To visualize the Lagrangian particles, after loading the data, check the "kinematicCloud" checkbox in the Mesh Parts list of the pipeline browser and click the Apply button.
Select display items
Commands
cd hopperEmptying
rm -rf 0
cp -r 0.orig 0
blockMesh
mapFields ../hopperInitialState -sourceTime latestTime
decomposePar
mpirun -np 4 icoUncoupledKinematicParcelFoam -parallel
reconstructPar
paraFoam
The utility "mapFields" is used to set the initial conditions by copying the results from another tutorial in the same directory.
Calculation time
3 hours 31 minutes 46.7 seconds *4 parallel, Inter(R) Core(TM) i7-2600 CPU @ 3.40GHz 3.40GHz