Hello

kungfu · August 28, 2012, 07:02

Hello I want to simulate water entry.but I dont know which software is suitable
1.Ansys
2.Abaqus
3.Dytran
or ...
can you help me?
thank you

bratzinger · August 28, 2012, 08:05

Hi

that aren't many informations about the case you want to simulate

for a simple fluid flow:
if u just got a gap where the water flows trough i recommend a fast analytical calculation

my experience with CFD-software:
if the software shouldn't cost anything, the case/geometry isn't too complex, you like Linux ... i could recommend OpenFOAM(with e.g. Gmsh)

since you're already in the Ansys CFX Forum - try that

->in the main very easy to handle ... and comes with useful tutorials

...

kungfu · August 28, 2012, 10:09

my case is an axisymmetric and streamlined bode.I want its trajectory and cavity simulation.

ghorrocks · August 28, 2012, 19:30

Sounds like this can be done using the rigid body solver in CFX. CFX support has some demo examples of a float on water bobbing about, that would be a good example to look at.

kungfu · August 29, 2012, 00:41

But i dont believe that the CFX can be a strong software for dynamics analysis of water entry.is it right?
abaqus is better in this field

ghorrocks · August 29, 2012, 07:48

This is the CFX forum. What do think I am going to say?

I have no idea if Abaqus can model this sort of thing. I know CFX can. It is not easy, but it can do it.

August 28, 2012, 07:02	Hello	#1
kungfu New Member mohammad Join Date: May 2011 Posts: 3 Rep Power: 14	Hello I want to simulate water entry.but I dont know which software is suitable 1.Ansys 2.Abaqus 3.Dytran or ... can you help me? thank you

August 29, 2012, 00:41	thank you for your help	#5
kungfu New Member mohammad Join Date: May 2011 Posts: 3 Rep Power: 14	But i dont believe that the CFX can be a strong software for dynamics analysis of water entry.is it right? abaqus is better in this field

August 28, 2012, 08:05		#2
bratzinger New Member Join Date: Jul 2012 Location: Germany Posts: 23 Rep Power: 13	Hi that aren't many informations about the case you want to simulate for a simple fluid flow: if u just got a gap where the water flows trough i recommend a fast analytical calculation my experience with CFD-software: if the software shouldn't cost anything, the case/geometry isn't too complex, you like Linux ... i could recommend OpenFOAM(with e.g. Gmsh) since you're already in the Ansys CFX Forum - try that ->in the main very easy to handle ... and comes with useful tutorials ...

August 28, 2012, 10:09		#3
kungfu New Member mohammad Join Date: May 2011 Posts: 3 Rep Power: 14	my case is an axisymmetric and streamlined bode.I want its trajectory and cavity simulation.

August 28, 2012, 19:30		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Sounds like this can be done using the rigid body solver in CFX. CFX support has some demo examples of a float on water bobbing about, that would be a good example to look at.

August 29, 2012, 07:48		#6
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	This is the CFX forum. What do think I am going to say? I have no idea if Abaqus can model this sort of thing. I know CFX can. It is not easy, but it can do it.