Learning Forum

[Sann]

Hello  everyone.

My masters thesis includes the analysis of a damaged ship. (A ship with a hole in the bottom of the ship). I need to analyse the RAO and similar parameters of the ship. I learnt how to analyse an intact ship with no damage in ANSYS Aqwa. But don't know what to do about the damaged case.

can someone please help me about this.

I have these doubts.

Can the same be done in Aqwa itself? Or should I use Fluent? If yes how? 

Since the water ingress from damage is also to be considered. Please help! 

[Karthik Remella]

Hello,

What type of analysis are you trying to perform? Are you trying to see when the ship would sink? Or are you looking at what the structural integrity of the ship would be because of water rushing into the ship through the hole?

Could you please elaborate on the scope of your simulation?

Thank you.

Best,

Karthik 

[Sann]

Hello Kartik,

I want to compare the parameters such as displacement/rotation, RAO, etc. of the "damaged ship with hole and water rushing in to the ship through the hole" with that of the "same ship without any damages". 

As I already mentioned, I know I can obtain these parameters of the intact ship with ANSYS AQWA. Is it the same procedure for damaged ship with a hole. And if I do the same procedure I did with intact ship to a ship model with hole in aqua, will the water rushing through the hole be considered? Or do I need to specify any other conditions to account the water rush?

Thanks for responding.

Regards,

Sanah.

[Yu Bi]

Hi, Sanah, sorry, Aqwa cannot simulate the water ingress/egress for damaged ships.

[Sann]

How about simulation of an intact ship with water filled inside? how to do it?

parameter required is RAO.

please help.

[Rob]

I assume you can just change the centre of gravity & mass? 

[Sann]

Thanks. I'll try that.