cfx alignment

mehrdadeng · March 31, 2009, 06:04

hi dear
i want simulation automobile turbo charger
i want align turbine blades to its shell.the end of blades must have 5mm distance from front of its shel.also, blades & its shell must be concentric but shell is not completly cicular.
plz help me

rikio · March 31, 2009, 20:47

Hi,

What are you processing? Geometry or mesh? Generally, you have to align blades and shroud in CAD system.
And what type of simulation? Steady or transient? As you said, the shell is not completely circular. Is it supposed to be this? For steady, it is not important to align a certain blade to the non-circular edge. But it does matter in a transient analysis.

mehrdadeng · April 1, 2009, 04:12

thanks for reply
i modeled blade & shell in catia.my process is in mesh & i intend to do transient simulation.how i can mesh assmbly of blade &shell so that their meshes be in different type????

best reagrd

rikio · April 1, 2009, 10:47

Mesh in different types? Do you mean one part in hex, and another in tetra?
In addition ,what do you mean shell? The shroud of the wheel?

mehrdadeng · April 1, 2009, 13:04

shell mean spiral chamber that blades rotate inside it.

thanks,rikio

March 31, 2009, 06:04	cfx alignment	#1
mehrdadeng Member mohsen Join Date: Mar 2009 Posts: 53 Rep Power: 17	hi dear i want simulation automobile turbo charger i want align turbine blades to its shell.the end of blades must have 5mm distance from front of its shel.also, blades & its shell must be concentric but shell is not completly cicular. plz help me

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March 31, 2009, 20:47		#2
rikio Senior Member Rikio Join Date: Mar 2009 Location: SH, China Posts: 182 Blog Entries: 1 Rep Power: 17	Hi, What are you processing? Geometry or mesh? Generally, you have to align blades and shroud in CAD system. And what type of simulation? Steady or transient? As you said, the shell is not completely circular. Is it supposed to be this? For steady, it is not important to align a certain blade to the non-circular edge. But it does matter in a transient analysis.

April 1, 2009, 04:12		#3
mehrdadeng Member mohsen Join Date: Mar 2009 Posts: 53 Rep Power: 17	thanks for reply i modeled blade & shell in catia.my process is in mesh & i intend to do transient simulation.how i can mesh assmbly of blade &shell so that their meshes be in different type???? best reagrd

April 1, 2009, 10:47		#4
rikio Senior Member Rikio Join Date: Mar 2009 Location: SH, China Posts: 182 Blog Entries: 1 Rep Power: 17	Mesh in different types? Do you mean one part in hex, and another in tetra? In addition ,what do you mean shell? The shroud of the wheel?

April 1, 2009, 13:04		#5
mehrdadeng Member mohsen Join Date: Mar 2009 Posts: 53 Rep Power: 17	shell mean spiral chamber that blades rotate inside it. thanks,rikio