Hydraulic Turbine Simulation (2-way fluid-structure interactions with ANSYS)

2-way fluid-structure interaction in a turbine under operation conditions made by ANSYS/CFX. Details on: http://publications.polymtl.ca/302/1/2010_FrederickDompierre.pdf

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• FSI
• 889v1

[fred198000]

Shaba88: I do not use "turbo mode" generally. I just import a mesh for the static parts and a mesh for the rotating parts. I set the interface as "transient rotor-stator". If you want to transfer pressure field to FEA simulation, you have to define the FSI surfaces for both simulations (CFD and FEA) and then connect them together. Since you consider air in you CFD simulation, one-way FSI should gives good results.

[fred198000]

It's not in real time. In fact, the turbine runs 300RPM.

[fred198000]

I don't know Fluent very well, but I read it is supposed to work

[fred198000]

In fact, there is no tutorial for fluid-structure interaction simulation including rotating meshes. But, this is the same concept than a regular 2-way FSI simulation for which there is at least one complete tutorial. To add a rotating runner in the simulation, you can use a "transient rotor-stator" tutorial simulation from CFX. For the runner simulation (FEA), you need to set the same rotational speed than the one for the CFX simulation and tag the fluid-solid interface. Hope it can help you!

[MrZi0om]

WTF ?!

[MrSk8guyJr]

how did i get here from a Skyrim commentary?

[shaba88]

hi i finally got my rotating blade as a transient annalysis with it rotating at every time step .. but do you kno how to make a smooth animation of it rotating cheers

[shaba88]

this is what the video is called on youtube ( ANSYS CFX CFD simulation of a wind turbine )

[shaba88]

youtube.com/watch?v=HBQ-liI4Q_­I

[shaba88]

cont. when i imported the pressure and solve i only see the blade deforming and not rotating unlike your video can you give me advice please

i am trying to model this exactly youtube.com/watch?v=HBQ-liI4Q_­I

[shaba88]

hi thank you for the advice..i finally got round in making my my helicopter blade. i made a 3block domain. first is stationary black as inlet..then a central ratating block with 100 rpm containing my blade and hub and 3rd outlet block which is also stationary.. i recieved cfx results porviding pressure however only can visualise the stramlines passing through.

i then transfered resutls as a one way fsi like you sa id, with the blade as a solid in order for it to work and then imported the pres.

[robocong7420]

looks like this turbine is turning extreeeeemmmmllllyyyyy slowly

[shaba88]

hi i thot you might be able to help me i am trying to show a helicopter blade rotating and want to show a simalar animation to yours... do i use turbo mode in cfx to model the ratating blade then import results to fea ???