Interfaces defined in Multiple reference frame.

archeoptyrx · March 4, 2016, 21:55

Hello all,

I am new to use multiple reference frame problems in ansys fluent. when we define interfaces in fluent, it defines two boundary zones ( side1 and side2) under boundary conditions.

Say Domain A spins at 100RPM, Domain B spins at -100 RPM. And If specify interfaces between these two, fluent generates two interface zones just as CFX. Should I have to edit those two new zones and change it to "moving zone" with moving RPM ?

or just leave it unedited ?

Thanks
Archep

Hamidzoka · March 5, 2016, 05:24

If you have previously defined RPM for each domain, it means that they are moving zones. If not, you need to define them.

archeoptyrx · March 6, 2016, 00:03

Thanks Hamid.

I did specify the domain motion.

Far · March 6, 2016, 08:15

Moving reference frame is for Frozen rotor simulation. (Yes you need to define interface for this (periodic repeats if you are modeling some portion)

Moving mesh is for sliding mesh simulation (Yes you need to define interface for this (periodic repeats if you are modeling some portion)

Mixing plane (defined separately in different panel) for mixing plane simulation. No need to define special interfaces. Moreover the boundaries should be defined as pressure inlet/pressure outlet or mass flow rate inlet/pressure outlet etc.

March 4, 2016, 21:55	Interfaces defined in Multiple reference frame.	#1
archeoptyrx Member sandy Join Date: May 2013 Posts: 91 Rep Power: 13	Hello all, I am new to use multiple reference frame problems in ansys fluent. when we define interfaces in fluent, it defines two boundary zones ( side1 and side2) under boundary conditions. Say Domain A spins at 100RPM, Domain B spins at -100 RPM. And If specify interfaces between these two, fluent generates two interface zones just as CFX. Should I have to edit those two new zones and change it to "moving zone" with moving RPM ? or just leave it unedited ? Thanks Archep

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March 5, 2016, 05:24		#2
Hamidzoka Senior Member Hamid Zoka Join Date: Nov 2009 Posts: 293 Rep Power: 19	If you have previously defined RPM for each domain, it means that they are moving zones. If not, you need to define them.

March 6, 2016, 00:03		#3
archeoptyrx Member sandy Join Date: May 2013 Posts: 91 Rep Power: 13	Thanks Hamid. I did specify the domain motion.

March 6, 2016, 08:15		#4
Far Senior Member Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,558 Blog Entries: 6 Rep Power: 54	Moving reference frame is for Frozen rotor simulation. (Yes you need to define interface for this (periodic repeats if you are modeling some portion) Moving mesh is for sliding mesh simulation (Yes you need to define interface for this (periodic repeats if you are modeling some portion) Mixing plane (defined separately in different panel) for mixing plane simulation. No need to define special interfaces. Moreover the boundaries should be defined as pressure inlet/pressure outlet or mass flow rate inlet/pressure outlet etc.