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How to define the conditional open state for domain interface

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Old   April 9, 2014, 14:26
Default How to define the conditional open state for domain interface
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Sara S.
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Hello,

I am modeling a tank filled with air and water (two phase flow) with two openings in the bottom of the tank. one opening opens to a channel filled with air and the other opening opens to a channel filled with water.
tank and each channels are separate domains. So I have three domains totally.

I have fluid fluid interface at the opening, one of them is the default interface. The other one is made manually.

I want to be able to control the time of opening and closing of these openings. Meaning that I want to for example leave the opening to water channel open for 1 second and then close it for 1 second. I think I should use "conditional connection control", correct?
But the problem is although I can control the water discharge from the opening to air channel by defining my "conditional connection control" as "conditional open state" of "Time>1[s]", I cannot control the water discharge from the water opening bu using the same setting. No matter I use "conditional connections control" or I don't use it, no water is discharged from this opening as if it is a wall boundary condition. Although it is exactly defined as the other opening. What am I missing here?
I am attaching a picture.

Thank you,
Sara
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2 phase flow, conditional open state, domain interface


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