|February 28, 2013, 05:23||
Interface model for a radial inflow turbine
Join Date: Dec 2012
Posts: 1Rep Power: 0
I am trying to simulate a turboexpander with radial inflow and axial outflow.
It consists of three parts basically
1. Nozzle : Stationary part, radial flow of fluid
2. Blade : Rotating with high rpm, radial inflow, axial outflow
3. Diffuser : Stationary, along the axis of rotation as shown in the figure.
I created all the blades as single blade was not giving me proper results
I am using 3 interfaces
1. Rotational periodic betwen the blades Per1 - Per2
2. Frozen rotor, for both the other interfaces.
Am I using the correct interface model? Which is the best turbulence model to be used in this.
Thanks a lot for helping
Please see the link for the system
|February 28, 2013, 06:41||
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 10,646Rep Power: 84
Have a look at the rotating machinery tutorials and documentation about the differences between the different approaches.
The choice of what turbulence model depends on what you are tryign to model as well. In general SST is a good choice, but some applications require RSM, LES, DES or laminar models.
|cfx, frozen rotor, interface model|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Radiation interface||hinca||CFX||15||January 26, 2014 18:11|
|Difficulty in calculating angular velocity of Savonius turbine simulation||alfaruk||CFX||8||December 3, 2013 17:51|
|Water subcooled boiling||Attesz||CFX||7||January 5, 2013 04:32|
|gas turbine combustor model - HELP!||Phil||Main CFD Forum||5||April 10, 2007 11:54|
|gas turbine combustor model - HELP!||Phil||Main CFD Forum||0||April 8, 2007 20:38|