Learning Forum

[amirhosseinfardi94]

Hello Dears,

I want to simulate rotational propeller.

I created the rotation zone and static zone. then setup mesh motion for rotation zone. and also define interface between rotation zone and static zone.

after the simulation, all the cells belong to rotation zone, have velocity( shown in attached picture) which is wrong.

I created the mesh in fluent meshing and then seperate zone in fluent by slit command and get same result.

mehsing 2 seperate part and append mesh and get same result.

and even created the mesh with ansys meshing, also getting the same result.

i am using ansys 2022R1.

any idea what could be problem ?

[Rob]

Are you plotting relative or absolute velocity? 

[amirhosseinfardi94]

I ploted absolute velocity.

I found the problem and it was in initialize.

I should initialize with absolute value while i did it with relative to cell option.

checking absolute in initialize menu, it fixed

[Rob]

OK, that'll explain it. However, as you said "after the simulation" I'm not sure why it's still showing the initial condition? 

[amirhosseinfardi94]

Becasue i stoped simulation after few time step.