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April 25, 2019, 09:44 |
Boundaries being ignored? [2D Microfluidics]
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#1 |
New Member
anonymous
Join Date: Apr 2019
Posts: 3
Rep Power: 7 |
I am simulating a 2D Microfluidics problem.
Water is entering in the middle left capilllary tube, and oil is coming from the top and bottom left sides. They are suppose to form a droplet and continue onto the entrance of the tube to the right, but they seem to ignore my boundaries. Furthmore, the droplet I created seems to be too large to enter the nozzle to the right. I have to incorporate navier stokes along with interfacial tension. https://streamable.com/ehsim I have set up edges(inlet, walls, outlet, etc.) in the Geometry section with DesignModeler, and have the boundaries transferred from that to the setup section. In the setup section I specified it as a stationary wall with no slip. Does anyone know why it is ignoring my boundaries? I am fairly new to ANSYS Fluent and would love some help! Thanks a lot. Last edited by Avocad; April 25, 2019 at 12:09. |
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April 26, 2019, 04:17 |
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#2 |
Senior Member
Alexander
Join Date: Apr 2013
Posts: 2,363
Rep Power: 34 |
what type do you boundaries have? Probably interior? Change to wall
best regards |
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April 26, 2019, 08:55 |
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#3 | |
New Member
anonymous
Join Date: Apr 2019
Posts: 3
Rep Power: 7 |
Quote:
All my boundares are wall boundaries. Except I noticed that 'interior surface body' were of the type 'interior,' so I switched it to 'wall.' Now I am having: Error: floating point exception Error Object: #f I have searched up online and am trying my best to fix it. If you have any idea on how to fix this that would be great! Again thanks for the reply. |
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April 29, 2019, 01:13 |
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#4 |
Senior Member
Alexander
Join Date: Apr 2013
Posts: 2,363
Rep Power: 34 |
make a sketch of domain, name regions
why do you have fluid in all regions of domain? best regards |
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April 29, 2019, 06:57 |
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#5 |
New Member
anonymous
Join Date: Apr 2019
Posts: 3
Rep Power: 7 |
I have fluid in all regions of domain because fluids are passing through that domain. I have changed the material type in mesh section to 'Defined by geometry(solid' to see if it would make a difference instead of fluid.
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