Timeline for What numerical methods are recommendable for simulating two phase immiscible fluid flow through a pipe with high capillary pressure?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Jun 11, 2012 at 5:04 | vote | accept | Paul | ||
| Mar 10, 2012 at 15:38 | comment | added | Paul | Yes. This is very similar to the kind of problem that I'm trying to setup. There is an interface which is clearly defined and should not be diffusing as it advances through the medium. I just wish the tutorial had a step by step procedure on how to set it up and solve it. | |
| Mar 10, 2012 at 8:09 | comment | added | Johntra Volta | I browsed the web a little bit and what I found is similar setup like in your case on page 8 of this Fluent tutorial, also an interesting paper which benchmarks several commercial CFD codes. About BC's in all references they say they used velocity inlet for inlet, pressure outlet (0 Pa) for outlet, and no-slip wall. | |
| Mar 10, 2012 at 7:56 | comment | added | Johntra Volta | In that case next thing that I would try is to increase the number of sub-iterations in timestep. | |
| Mar 10, 2012 at 1:53 | comment | added | Paul | Actually, yes. I am using FLUENT. I have tried using the non-iterative time stepping mechanism too, but I run into the same problem. I have noticed that when I use a larger domain (let's say about on the order of 1cm or larger), everything works perfectly. But when I scale the problem down to millimeters or smaller, it just doesn't work the same... Do you have any suggestions? | |
| Mar 9, 2012 at 17:33 | history | answered | Johntra Volta | CC BY-SA 3.0 |