MODELING A ROTATING BLADE(pleas hehlp)

hmasenger · April 13, 2009, 01:48

HI THERE
is there any need to model the blade and the atmosphere together for analysing the act of TRANSMITTAL of material of atmosphere affected by the blade?!
if yes should i define a solid domain for the blade and a fluid for the atmosphere?
so how can i define the rotation of blade? i cant define rotation in solid domain?!!!

k_buz · April 13, 2009, 09:10

You actually only need the fluiddomain where the blade is cut off. So in the middle of the domain the shape of the blade is missing. then you put a boundary condition "wall" to that boundary. then you can set up the domain as a rotating domain. so you actually let rotate the domain instead of the blade..

check out that post: http://www.cfd-online.com/Forums/cfx...ultifield.html

hmasenger · April 13, 2009, 15:05

i really appreciate
your favor
u got the problem right.
tanks alot

April 13, 2009, 01:48	MODELING A ROTATING BLADE(pleas hehlp)	#1
hmasenger Senior Member hamed Join Date: Apr 2009 Posts: 148 Rep Power: 17	HI THERE is there any need to model the blade and the atmosphere together for analysing the act of TRANSMITTAL of material of atmosphere affected by the blade?! if yes should i define a solid domain for the blade and a fluid for the atmosphere? so how can i define the rotation of blade? i cant define rotation in solid domain?!!!

April 13, 2009, 15:05	tanks alot	#3
hmasenger Senior Member hamed Join Date: Apr 2009 Posts: 148 Rep Power: 17	i really appreciate your favor u got the problem right. tanks alot

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April 13, 2009, 09:10		#2
k_buz New Member Fritzl Join Date: Apr 2009 Posts: 6 Rep Power: 17	You actually only need the fluiddomain where the blade is cut off. So in the middle of the domain the shape of the blade is missing. then you put a boundary condition "wall" to that boundary. then you can set up the domain as a rotating domain. so you actually let rotate the domain instead of the blade.. check out that post: http://www.cfd-online.com/Forums/cfx...ultifield.html