[maziziy]

Hello Friends
In virtual disk model we can change disk normal vector direction during simulation by an expression for it but disk center is fixed and there is not the option to enter an expression for it. Is there any way to apply displacement to VD center with respect to the time ?

[ashokac7]

I don't think it is needed. Please go through this tutorial section

Tutorials > Motion > Body Force Propeller Method: Marine Self-Propulsion > Modeling the Propeller by Using the Virtual Disk Model

Sorry if I am wrong, but I think you don't need to assign motion to virtual disc. It will be based on co-ordinate system for virtual disc.

[maziziy]

Originally Posted by ashokac7

I don't think it is needed. Please go through this tutorial section

Tutorials > Motion > Body Force Propeller Method: Marine Self-Propulsion > Modeling the Propeller by Using the Virtual Disk Model

Sorry if I am wrong, but I think you don't need to assign motion to virtual disc. It will be based on co-ordinate system for virtual disc.

Thanks for your reply. But my propeller's motion is relative to the body (i.e. boat) and is different from ones for body.

[DmG]

Originally Posted by maziziy

Thanks for your reply. But my propeller's motion is relative to the body (i.e. boat) and is different from ones for body.

hello friend:
I also want to move virtual disk in STAR CCM+, if you konw how to do it, please tell me the way to do it, thank you very much!

[maziziy]

fortunately, it can be done by defining new coordinate for disk and assigning relative coordinates. I dont remember details. Try it, if you can not do it tell me I refer to the software for seeing detalils.1

[maziziy]

Originally Posted by DmG

hello friend:
I also want to move virtual disk in STAR CCM+, if you konw how to do it, please tell me the way to do it, thank you very much!

Fortunately, it can be done by defining new coordinate for disk and assigning relative coordinates. I dont remember details. Try it if you can not do it tell me I refer to the software for seeing detalils.

[DmG]

Originally Posted by maziziy

Fortunately, it can be done by defining new coordinate for disk and assigning relative coordinates. I dont remember details. Try it if you can not do it tell me I refer to the software for seeing detalils.

Please forgive me for replying to your message so late, because I just saw this message, I will try to solve this problem in this way, and I will tell you as soon as I solve the problem. Thank you very much for your answer
！

[DmG]

Originally Posted by maziziy

Fortunately, it can be done by defining new coordinate for disk and assigning relative coordinates. I dont remember details. Try it if you can not do it tell me I refer to the software for seeing detalils.

I am sorry that I am not achieve virtual disk's move, so could you show me more details about it? I will be very appreaciate for your guidence!