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March 9, 2006, 20:02 |
cylinder in 2d
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#1 |
Guest
Posts: n/a
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Dear all,
I am trying to model a simple pipe flow. I was wondering if a cylindrical object can be accurately modelled in 2dimensions? i.e. the cross section becomes a rectangle. How do we account for the rounded sides? wouldn't it become like a rectangular box beam in 3d? How can i use cylindrical coordinates to rectify this problem and model a cylinder in 2d? Thanks a lot best regards Juliana |
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March 10, 2006, 01:50 |
Re: cylinder in 2d
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#2 |
Guest
Posts: n/a
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Use the axisymmetric model of fluent. be carefull on the fact that the axis of symmetry of your cylinder should be the x coordinate....and the radial the y coordinate.
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March 10, 2006, 03:58 |
Re: cylinder in 2d
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#3 |
Guest
Posts: n/a
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Hi, when you are modeling a cylinder flow then the boundary conditions you might use are axisymmetric which wont make the 2D problem as rectangular box beam in 3D.
hope it clarified your doubt Regards Ravi Duggirala |
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March 11, 2006, 08:15 |
Re: cylinder in 2d
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#4 |
Guest
Posts: n/a
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hi I am sorry. 1) how do I activate the axisymmetric model in fluent? 2) if my cylinder is later modified to pipe inclined at some angle, can still use axisymmetric model?
Thanks a lot!' juliana |
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July 18, 2012, 16:03 |
antisymmetric cylinder
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#5 |
New Member
Join Date: Nov 2011
Posts: 4
Rep Power: 14 |
Dear all
I have a Tjunction tube that 2 phases ( air and water) get in from two inlets and mix. I want to model this in 2D but this problem is not symmetric so I could not use axisymmetric condition please help me |
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July 19, 2012, 04:37 |
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#6 |
Senior Member
Marion
Join Date: Jul 2012
Location: France
Posts: 122
Rep Power: 14 |
Hi,
If your geometry doesn't have an axis of symmetry you cannot use the 2D axisymmetric model. Especially if you want to have the water coming from 1 side and the air coming from the other side. You could try a standard 2D model, but then you won't be modelling pipes, as the Z direction will be infinite. for a T-junction pipe, I am afraid 3D is your only option. Marion. |
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May 24, 2023, 10:18 |
Simulation of unsteady laminar vortex shedding of flow past a circular cylinder
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#7 |
New Member
Muhammad Imran
Join Date: May 2023
Posts: 1
Rep Power: 0 |
Hi
I am try to simulate the unsteady laminar vortex shedding of flow past a circular cylinder but i didn't complete this Help me Last edited by Imran123; May 24, 2023 at 10:20. Reason: Due to incomplete question |
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