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-   -   Modeling marine propeller in fluent (http://www.cfd-online.com/Forums/main/7060-modeling-marine-propeller-fluent.html)

Lukasz Skraburski January 24, 2004 11:47

Modeling marine propeller in fluent
 
Hi, I'm trying to simulate flow around a propeller. The propeller is rotating, so I'm fixing it and rotating water instead of propeller. I'm using single rotating reference frame. I don't know if this is cgrrect, results are not OK. How big should be domaind for a propeller D=0.3048m My is r=6m, 3m upstream, 10m downstream.

If anybody know how to do this, please help. Thanks Lukasz

Joern January 24, 2004 13:43

Re: Modeling marine propeller in fluent
 
You have to use at least multiple rotating frames. If you want to calculate the interaction between the ship hull and the propeller you have to use sliding mesh.


Li Yang January 25, 2004 07:19

Re: Modeling marine propeller in fluent
 
I don't know much about Fluent but if he only simulates a single propeller and does not want to take into account the interaction effects between the propeller and the hull, an attached blade frame can be used, and the flow around a propeller can be regarded as a steady flow.

James Date January 25, 2004 13:45

Re: Modeling marine propeller in fluent
 
You want to check out the research done by Moustafa Abdel-Maksoud on CFD propeller modelling. There's lots of references on the web.

James

Lukasz Skraburski January 25, 2004 14:08

Re: Modeling marine propeller in fluent
 
I'm modeling only the propeller, I got problems at advance coefficient about J=1.1 and higher.


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