sloshing

[hasis]

I want to create a simulation in Abaqus to get natural frequencies of sloshing tank, should Iperform modal analysis for fluid only or for tank coupled with fluid in it? and how to get natural sloshing frequencies

 

[Dave442]

in the Abaqus Benchmarks Guide there is a benchmark problem involving "water sloshing in a pitching tank".

might be a good place to start.

 

[hasis]

http://license.mech.northwestern.edu:2080/v6.13/books/bmk/default.htm?startat=ch01s12ach88.html

this "water sloshing in a pitching tank" is explicit step, therefore couden't earn frequence
because need frequency step