|January 9, 2014, 20:25||
About Rotating Reference Frame （RRF）in CFX
Join Date: Mar 2012
Posts: 8Rep Power: 4
I'm dealing with a wind turbine rotating simulation. Now I have some uncerten things about RRF need ask.
Some info about this simulation list below:
in coming wind speed : 10m/s along Y-axis
Rotating domain: +320rpm about Y-axis, it's clockwise rotation if you observe in front of whole turbine (inclued nose corn, two blades only and a short cylinder that represente the linkage between the rotor and nacelle)
Stationary domain : include nacelle and tower.
3 split interfaces enclose rotor.
I have performed the steady state simulation, I slice the blade and view the fluid velocity around the airfoil,I found fluid come frome the trailing edge to leading edge which is oppsite the physical condistion.
so I decide use -320rpm for rotaing domain, and do a transient simulation and make an animation, however in this animation the blade is rotating in anti-clockwise which it is not true in physics.
So I'd like to know, for the rotating domain should use the same angular velocity as the blades or reversed angular velocity?
|rrf, wind turbine|
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