Is it possible to model flowing water?

hmonterroso

I am a civil engineering student at the University Costa Rica and I am currently working on my graduation project which consists on comparing the SPH model to more conventional models used in engineering. In order to do this, I need to be able to input some flow data. One of the things I want to model is a hydraulic jump and thus flow conditions must be given.
I have not been able to find out a way to input flow data or particles inlet and I do not know if it is possible in the current version of DualSPHysics. Can flow be modeled with an external force model or can this not be done at all.

Alex

The current version of DualSPHysics (4.0) does not include open boundaries (inlet/outlet conditions). However next release will include this (end of 2017).

Meanwhile you can use the available functionalities of applying external force to fluid and using periodic boundaries.

Regards

hmonterroso

Hi
thanks for your quick response. Is there any way to have a look at some sort of case for the external forces file or some of the cases that have periodic boundaries. I can't seem to find anything as the case I need in the examples in the Run_directory.
I am trying to achieve something like this


where there's a constant flow of water. So at this point I guess the question is how can I use external forces and periodic boundaries to achieve this? Would immensely appreciate any help here! Also looking forward to the new version!

Alex

In Run_directoy you have several examples using the functionalities of the video you showed...

- CaseForces: example of applying external acceleration to fluid
- CasePeriodicity: example of periodic boundaries
- CaseBowling: example of DEM objects with periodic boundaries

hmonterroso

Thank you! I had not seen case periodicity! I was just really focused on the XML file that I did not go over that one! It's exactly what I need. Really Appreciate your help!