Simulating a gear pump for a finite volume

vivjk94 · December 25, 2020, 07:29

Hello, i would like to do an analysis for a gear pump My main goal is to study the trapped volume in the gear teeth when the gears are meshing. Is it possible to do this in ansys cfx? how do i setup this control volume in ansys Cfx?
Please help me, i am new to Ansys cfx.

Thank you in advance

ghorrocks · December 26, 2020, 06:19

Is the trapped volume a purely geometric thing? If so, can't you do it with a solid modelling package and no CFD is required?

If I have misunderstood you, please explain what you mean by trapped volume.

vivjk94 · December 26, 2020, 06:28

By trapped volume I mean when the space between two gear teeths traps a volume from inlet, carries it against the pump casing and delivers it to the outlet.
I need to be able to determine how much volume is being trapped and delivered to the outlet for every rotation.
If I were to do it as solid modelling, how would I go about it?
Thanks for your inputs.

December 25, 2020, 07:29	Simulating a gear pump for a finite volume	#1
vivjk94 Member Vivek MJ Join Date: Oct 2020 Location: India Posts: 53 Rep Power: 6	Hello, i would like to do an analysis for a gear pump My main goal is to study the trapped volume in the gear teeth when the gears are meshing. Is it possible to do this in ansys cfx? how do i setup this control volume in ansys Cfx? Please help me, i am new to Ansys cfx. Thank you in advance

December 26, 2020, 06:19		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,854 Rep Power: 144	Is the trapped volume a purely geometric thing? If so, can't you do it with a solid modelling package and no CFD is required? If I have misunderstood you, please explain what you mean by trapped volume. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

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December 26, 2020, 06:28		#3
vivjk94 Member Vivek MJ Join Date: Oct 2020 Location: India Posts: 53 Rep Power: 6	By trapped volume I mean when the space between two gear teeths traps a volume from inlet, carries it against the pump casing and delivers it to the outlet. I need to be able to determine how much volume is being trapped and delivered to the outlet for every rotation. If I were to do it as solid modelling, how would I go about it? Thanks for your inputs.