[ash1370]

Hi,

I have recently received a project for one of my works, it is about simulating flow around a submarine. I'm a student and familiar with unstructured mesh, But, I want to create structured mesh around submarine. Because of having little time, I really need a tutorial or guide about creating Hexa mesh around a submarine. I'll be very grateful if you can help me.
I have a question too, does unstructured mesh for submarine gives good results or I just have to create structured mesh.

Thanks.

[vimaero]

Which software would you like to use? If possible can you share a snapshot of the geometry. From what i heard, people who work in naval would like to create structured mesh.

[ash1370]

I'm working with ICEM and the geometry is the known SUBOFF model. I heard that too, but I'm not familiar with structured mesh and intend to use unstructured. Does unstructured mesh give reliable results for this case?

[vimaero]

Generally, if you have more number of cells(say twice/thrice) in unstructured compared to structured grid - the results would be more or less similar. This is the case for hex grid. but if you are planning to use tetrahedral cells, then its better to search some naval related forums to know the advantages of using structured grid in that industry and proceed.
Watching this youtube video may help you understand the easiness of structured grid generation process.
https://www.youtube.com/watch?v=joue...5FsZhRcYrZ-6ew

[tcarrigan]

Generally, for hydro applications such as this one, it is advantageous to use flow aligned structured grids. A structured grid will be more efficient in terms of point and cell count when compared with an equivalent unstructured grid. This is especially true when you are trying to capture the boundary layer region for these high Reynolds number flows.

[Jinzhihui]

Originally Posted by ash1370

Hi,

I have recently received a project for one of my works, it is about simulating flow around a submarine. I'm a student and familiar with unstructured mesh, But, I want to create structured mesh around submarine. Because of having little time, I really need a tutorial or guide about creating Hexa mesh around a submarine. I'll be very grateful if you can help me.
I have a question too, does unstructured mesh for submarine gives good results or I just have to create structured mesh.

Thanks.

hi, i'm going to do some simulation to validate the simulation method against the suboff model,but i can't find where the suboff model data an the experimental data .I want know where i can find suboff body ,and could you provide the link or address about downloading these data? Thanks inadvance！