I found an underwater modal analysis example of immersed propeller. I followed the instructions from the tutorials.
However i can not get the same according to the academical studies.
As you know, added water mass should reduce the natural frequencies, but ın my study nothing happens.
1- Tutorial fixed the propeller hub. Is it correct, because i want to simulate underwater free modal?
2- ı tried two studies. first one ı only fixed the hub of propeller and only examine the propeller. the second one i fixed the hub of propeller and add a volume for water then followed instruction from the tutorial. I expected that the reduction of the natural frequencies but nothing changed.
I attached the model at the link below
Could you please examine the model and tell me where i did wrong?
Best Regards and sorry for long post.