[dha_90]

Hello,

this is my first thread in this forum, so please forgive me if there are any rules, I don't know

I want to investigate the losses of the gap of a rotor blade between the blade an the hub. The Background is to vary the AoA of the rotor blade and that's why there is this gap.
Because of my small CFD experience, I wanted to ask for the main steps I have to do for this project.

I already have a CAD-model (SolidWorks) of the blade. I wanted to work with Fine Turbo of Numeca. The next thing I have to do is to think about the borders for my numerical investigation right?

Thanks a lot for your help.
Greetings

[lcarasik]

Originally Posted by dha_90

Hello,

this is my first thread in this forum, so please forgive me if there are any rules, I don't know

I want to investigate the losses of the gap of a rotor blade between the blade an the hub. The Background is to vary the AoA of the rotor blade and that's why there is this gap.
Because of my small CFD experience, I wanted to ask for the main steps I have to do for this project.

I already have a CAD-model (SolidWorks) of the blade. I wanted to work with Fine Turbo of Numeca. The next thing I have to do is to think about the borders for my numerical investigation right?

Thanks a lot for your help.
Greetings

My standard CFD workflow is the following:

Geometry Prep -> Import into Meshing Software -> Create Mesh (1) -> Set up case (simulation framework (RANS, uRANS, LES), physics, boundary conditions, initial conditions) -> Test mesh for basic quality (y+ and resolution of high gradients) (2) -> Go back to (1) if not sufficient -> Set up all quantities needed for monitoring -> Run -> Post Process

[ashokac7]

I recommend to go for approximated steady case first. Then go for transient. Study your physics like Reynolds's number, multi-phase etc. Find out what type of mesh behavior you need like sliding, mrf or any other. Do simulation only if you have some experimental results otherwise search relevant research papers for experimental results.