hi I want to simulate dam break .could you help me? thanks

Yes

Amen to that Tom!!!

Most CFD codes can do this type of work (dam break, weir flow, spillways). Look on their websites on at their publications. I have carried out such work with CFX notably, but only qualitatively so far. I am also pretty sure that some hydraulics institutes in the UK, Denmark and NL have reviewed these cases as well.

cheers, barry.

dear holidays, you have got 'qualitative'results - what about 'quantitative'? how do you guarantee these 'qualitative' results even ? by the way, was it with the vof method, the 'anything and everything can be done' one. amen!

The first such simulation I recall was done by Los Alamos using the Marker-and-Cell (MAC) technique. They found an experiment (lab scale dam?) and matched the crest position vs. time in a non-dimensional frame.

Of course they re-ran the problem when they released the Simplified Marker-and-Cell (SMAC).

This is I think missing a generation of free surface algorithm.

The last appearance of this test case is in some of the papers generated with the introduction of SOLA-VOF.

You can find the journal articles by searching on combinations like Harlow and MAC, Amsden and SMAC, Hirt and SOLA-VOF, or Hirt and VOF.