Flow driven of darrius turbine using ANSYS cfx

TKP · April 8, 2015, 15:48

At present i am trying flow driven analysis( Turbine is rotated by fluid motion) to estimate performance of vertical axis Darrieus turbine in ANSYS CFX/ANSYS Fluent. But i am unable to perform. Is FSI is needed for analysis? I am NOT concerned about deformation of turbine blade. so I am taking turbine as rigid body.

ghorrocks · April 8, 2015, 18:51

Do not model this with FSI. Do not model this with rigid bodies. Use a rotating frame of reference. Examples of how to do this are in the CFX tutorials, all the rotor/stator cases.

A lot of people are making this mistake. I think we should write an FAQ on this.

TKP · April 9, 2015, 04:54

Thanks a lot..Can you please provide me the link of one such tutorial? Thanks again ]

Thomas MADELEINE · April 9, 2015, 05:38

Look at Help -> Tutorial
and then you have the choice of many of them with stator/rotor or just rotor, compressor/turbine, axial/radial...
just pick one that describe the best your simulation ^^

April 8, 2015, 15:48	Flow driven of darrius turbine using ANSYS cfx	#1
TKP New Member TKP Join Date: Apr 2015 Posts: 7 Rep Power: 11	At present i am trying flow driven analysis( Turbine is rotated by fluid motion) to estimate performance of vertical axis Darrieus turbine in ANSYS CFX/ANSYS Fluent. But i am unable to perform. Is FSI is needed for analysis? I am NOT concerned about deformation of turbine blade. so I am taking turbine as rigid body. khaled ali likes this.

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April 8, 2015, 18:51		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,870 Rep Power: 144	Do not model this with FSI. Do not model this with rigid bodies. Use a rotating frame of reference. Examples of how to do this are in the CFX tutorials, all the rotor/stator cases. A lot of people are making this mistake. I think we should write an FAQ on this.

April 9, 2015, 04:54		#3
TKP New Member TKP Join Date: Apr 2015 Posts: 7 Rep Power: 11	Thanks a lot..Can you please provide me the link of one such tutorial? Thanks again ]

April 9, 2015, 05:38		#4
Thomas MADELEINE Senior Member Thomas MADELEINE Join Date: Oct 2014 Posts: 126 Rep Power: 12	Look at Help -> Tutorial and then you have the choice of many of them with stator/rotor or just rotor, compressor/turbine, axial/radial... just pick one that describe the best your simulation ^^