Bent pipe with multiple inlets

Update: June 1, 2017
OpenFOAM 4.x

Case directory



The fluid flows in from velocity-inlet-5 (red part) at 1 m/s and from velocity-inlet-6 (green part) at 3 m/s, and flows out from pressure-outlet-7 (blue part). A No-slip condition is set to the channel wall, and the calculation is performed as a 2-dimensional problem with a single mesh in the Z direction.

The calculation is performed up to 10 seconds later.

Model geometry Model geometry

The meshes are as follows.

Mesh Meshes

The calculation result is as follows.

Flow velocity at 10 seconds (U) Flow velocity at 10 seconds (U)
Pressure at 10 seconds (p) Pressure at 10 seconds (p)


cp -r $FOAM_TUTORIALS/incompressible/icoFoam/elbow elbow
cd elbow

fluentMeshToFoam elbow.msh


The prepared Fluent format mesh file is converted and used. After the calculation, the mesh and the result are converted to Fluent format file again.

Calculation time

--- *Single, Core(TM) i7-2600 CPU @ 3.40GHz 3.40GHz