Expansion of an air bubble in water (3D)

OpenFOAM 4.x

Case directory

$FOAM_TUTORIALS/multiphase/compressibleInterFoam/laminar/depthCharge3D

Summary

Model geometry Model geometry

We calculate the movement of a compressed bubble in water for 0.5 seconds. The bubble, which is initially compressed, begins to expand when the calculation starts. A no-slip condition is set for the region "walls" at the boundary of the analysis domain.

The physical properties of the water and air phases are specified in the file "constant/thermophysicalProperties.*".

The meshes are as follows, and the number of mesh is 1024000.

Mesh Meshes

The calculation result is as follows.

Volume ratio of water 0.5 isosurface
Volume ratio of water 0.5 isosurface at initial time Volume ratio of water 0.5 isosurface at initial time
Volume ratio of water 0.5 isosurface at 0.5 sec Volume ratio of water 0.5 isosurface at 0.5 sec
Volume ratio of water 0.5 isosurface at 0.25 sec Volume ratio of water 0.5 isosurface at 0.25 sec
Volume ratio of water 0.5 isosurface at final time Volume ratio of water 0.5 isosurface at final time

Commands

cp -r $FOAM_TUTORIALS/multiphase/compressibleInterFoam/laminar/depthCharge3D depthCharge3D
cd depthCharge3D

blockMesh
cp -r 0.orig 0
setFields

decomposePar
mpirun -np 4 compressibleInterFoam -parallel
reconstructPar

paraFoam

Calculation time

2 hours 56 minutes 23.03 seconds *4 parallel, Inter(R) Core(TM) i7-2600 CPU @ 3.40GHz 3.40GHz