|May 26, 2013, 18:16||
Shaft rotating in fluid CHT
Join Date: Aug 2009
Posts: 60Rep Power: 8
I am looking at simulating a shaft rotating inside a cavity of air with the aim of monitoring the torque on the shaft due to viscosity. Added to this I would like to have the actual shaft solid part in the simulation so that I can see how the viscous heating affects the shaft temperature.
I have already ran the simulation with a "fluid only" domain whereby I specify the tangential velocity method on the surface that coincides with the rotating shaft surface. I have got good results using this method. I now want to include the solid shaft in the simulation. I have tried several methods but I always seem to get very low torque on the shaft compared to the tangential velocity method, they should be exactly the same.
I have the full fluid and solid regions and have defined an in-place contact interface where the shaft is in contact with the fluid. If I specify a tangential velocity for the contact interface between the fluid and solid I get zero torque on the interface. I have also tried to set the solid shaft region as a moving reference frame but get the same results.
It sounds like it should be a fairly simple method because essentially I have a shaft rotating in a fluid that I want to simulate.
Any help would be greatly appreciated.
|Thread||Thread Starter||Forum||Replies||Last Post|
|VOF method- Fluid in a rotating Cylinder Problem||Krishna Sandeep||FLUENT||1||July 3, 2012 16:44|
|Please help me!!!!!!! analysis of a semi salvage rotating cylinder in a fluid||adambarfi||FLUENT||2||June 14, 2012 01:53|
|[GAMBIT] Rotating Cylinder Full of Fluid||1337Hal||ANSYS Meshing & Geometry||4||April 7, 2009 03:38|
|CHT with radiation and body is rotating||harish kumar||CFX||0||February 1, 2008 13:00|
|Fluid in a rotating cylinder||Fluid Novice||Main CFD Forum||1||December 17, 1998 18:25|