switch boundary conditions in a model

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Hello, dear users. I have a problem with Switching the boundary conditions. There is a chamber with two inlets and one outlet, and I want to simulate a single-phase time-dependent fluid in the chamber. In a time interval (0,t1), fluid enters the chamber through inlet one, and in (t1,t2) fluid enters through inlet 2. how can I switch the inlets in the transient solution. I have attached a schematic photo. Thank you



2 Replies Last Post 11 avr. 2020 à 13:14 UTC−4
Robert Koslover Antennas, Waveguides, Electromagnetics

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Posted: 2 months ago 11 avr. 2020 à 12:48 UTC−4

Well, you should be able to specify time-dependent functions as user-defined boundary conditions in your time-dependent problem. For example, define the functions of time you need under Component --> definitions --> functions and then enter those functions where you would specify your inlet BCs. Have you already tried that?

Well, you should be able to specify time-dependent functions as user-defined boundary conditions in your time-dependent problem. For example, define the functions of time you need under Component --> definitions --> functions and then enter those functions where you would specify your inlet BCs. Have you already tried that?

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Posted: 2 months ago 11 avr. 2020 à 13:14 UTC−4

Well, you should be able to specify time-dependent functions as user-defined boundary conditions in your time-dependent problem. For example, define the functions of time you need under Component --> definitions --> functions and then enter those functions where you would specify your inlet BCs. Have you already tried that?

thank you for your help, I'll try it.

>Well, you should be able to specify time-dependent functions as user-defined boundary conditions in your time-dependent problem. For example, define the functions of time you need under Component --> definitions --> functions and then enter those functions where you would specify your inlet BCs. Have you already tried that? thank you for your help, I'll try it.

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