how to study a simple rotating blade?

signofra · April 1, 2010, 06:09

Hello everyone!
I'll tell you now what my problem is. I have to simulate the behavior of a simple rectangular shaped blade of a vertical axis hydraulic turbine. Only a blade to make the comparison with a mathematical model that I have made. I am working in this way. In ICEM I create two domains

ne cylindrical (with the) which describes the movement of the rotary blade and the other describing instead the steady inflow and outflow of water. What I need is get the torque that makes the water on the blade. I do not know if I'm proceeding on the right way. I work with a Transient Rotor-stator interface. In your opinion, okay?
Looking at the streamlines does not seem to be very correct. What should I do?
let me know thanks

ghorrocks · April 1, 2010, 06:23

What you are doing sounds correct.

What does not look correct about the streamlines? I can guess the reason anyway - draw streamlines using the variable "Velocity in stationary frame".

April 1, 2010, 06:09	how to study a simple rotating blade?	#1
signofra New Member Francesco Join Date: Jan 2010 Posts: 3 Rep Power: 16	Hello everyone! I'll tell you now what my problem is. I have to simulate the behavior of a simple rectangular shaped blade of a vertical axis hydraulic turbine. Only a blade to make the comparison with a mathematical model that I have made. I am working in this way. In ICEM I create two domainsne cylindrical (with the) which describes the movement of the rotary blade and the other describing instead the steady inflow and outflow of water. What I need is get the torque that makes the water on the blade. I do not know if I'm proceeding on the right way. I work with a Transient Rotor-stator interface. In your opinion, okay? Looking at the streamlines does not seem to be very correct. What should I do? let me know thanks

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April 1, 2010, 06:23		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,701 Rep Power: 143	What you are doing sounds correct. What does not look correct about the streamlines? I can guess the reason anyway - draw streamlines using the variable "Velocity in stationary frame".