|August 28, 2015, 08:48||
Tube bank unit cell w/ cyclic BC
Join Date: Aug 2015
Posts: 16Rep Power: 3
I am having troubles simulating a tube bank heat exchanger unit cell with cyclic boundary conditions. I wish to model a 2D turbulent transient case using buoyantBoussinesqPimpleFoam as the solver and kOmegaSST as the turbulence model. I have attached the picture of the mesh and the boundaries are set up as follows:
- Left Inlet: Cyclic, neighboured to right outlet
- Right outlet: Cyclic, neighboured to left inlet
- Top left: Cyclic, neighboured to bottom right
- Top right: Cyclic, neighboured to bottom left
- Bottom left: Cyclic, neighboured to top right
- Bottom right: Cyclic, neighboured to top left
- Cylinder surfaces: zero velocity and fixed temperature
As it is set up now with an initial velocity, the model runs for less than a second real time. As I can see the velocity drops to 0, it seems like there is no driving force on the fluid. It makes sense because of the zero velocity cylinder surfaces.
My problem is therefore to understand how I can apply a driving force when using cyclic BC on all boundaries except the cylinders. I assume i have to apply a pressure gradient somehow?
The case is attached as a zip file.
|Thread||Thread Starter||Forum||Replies||Last Post|
|What is best mesh for cylinder tube?||olivia||FLUENT||7||January 16, 2014 06:55|
|2 datas on one plot||Akuji||ParaView||46||December 1, 2013 15:06|
|create tube bank model of different voidage||beehuah||Main CFD Forum||0||November 19, 2010 04:31|
|cyclic boundary condition doesn't work in a tube ??||Cyp||OpenFOAM||6||April 16, 2010 15:21|
|tube bank inertial resistance coefficients||Brian||FLUENT||0||September 8, 2004 09:04|