Modelling moving mass 1

[aigbeawen]

Hi everyone

I am performing a slug analysis and i am trying to simulate the slug as a moving mass along length of pipeline in a dynamic analysis,
is it possible to use ITT elements with a slide line to model this or does anyone have a better suggestion.

The slug is to move along a 3D bend section along the pipeline.

Pls help!!

 

[twillis]

Do you need to model the dynamic response as the slug moves along the pipe length, or just the pipework reaction to the different phases. You could look at creating a MPC subroutine to model a node sliding along a path. You can tie a mass to the node and give it a velocity to model the slug moving through the pipework. I've seen this used before.

 

[aigbeawen]

Hi twillis,

Thanks for your response, however I have not created nor used a User subroutine before,
Can you kindly give me a lead on this, or if you have an helpful file.

Rds.