solving for fluid pipe inertia

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Anthony
Anthony 2025-4-1
评论: Jakub 2025-4-11
I am trying to use simscape to model a fluidic system with inertia using water, and have run into issues with solving due to the 'minimum pressure' requirement not being met. I have tried isolating the problem to the simple system shown in image, with pipe and pump parameters and attached as well as the errors recieved when running. I have tired abritrarily increasing the source resevoir pressure but the same issue still occurs. It seems to work without the fluid inertia box ticked on pipe parameters, but adding that in breaks it. My guess is that there is an issue with my initial conditions, but can't work out what.
  4 个评论
Yifeng Tang
Yifeng Tang 2025-4-3
I mean the .slx file and required parameters. It's hard to diagnose based on pictures.
Jakub
Jakub 2025-4-11
Try to go to the Isothermal Liquid Predefined Properties (IL) block. Go to the Entrained Air tab and zero the volume fraction of the air in the liquid.

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