Hi everyone I’m trying to simulate a CFD flow over a rotating propeller but I’m not too sure about the rotating zone which I’ve to create. Any ideas? https://www.simscale.com/workbench/?pid=4390718115295170910#tab_0-0 Thanks Melissa

Hi Melissa ( @msheu )! I think there might be a slight misunderstanding. You still need the bounding box as well as the material point to define your fluid domain. How else would you assign your boundary conditions later on? This is absolutely necessary as Darren ( @1318980 ) already mentioned to defin…

Hi Jousef Thanks for clarifying but I’m just wondering why for his project, under ‘Geometry primitives’, only the base mesh box is shown? Where did the material point go? And when he applied that function, only the propeller is present in the box, or so it seems. Where did the cylinder go? [image…

Hi @msheu ! I am currently running a new mesh. I assume that you are using the “old” layout which created a bit of a confusion in this discussion. I will post the finished mesh asap to be at the same level and we may then continue with your simulation. Update: Shared. Best, Jousef

Hi Jousef I’ve already meshed my propeller. Can you help me check and see if this is what you meant? SimScale Login Log in to your SimScale account. SimScale makes high-fidelity engineering simulation technically and economically accessible. At any scale. In the cloud. …

Hi Melissa, in discussion with @jousefm as he noticed an issue where some odd behaviours occurred. However I have a successful mesh for you to use: You might want to refine further the propeller, however, the basic setup is there, I might also be tempted to increase the bounding box size but that i…

Hi Melissa, I would recommend using the setup as a basis only and adjust it to your need, the example isn’t what I would call simulation ready simply a good working starting point. That said I would expect a mesh downloaded and reuploaded from SimScale to not have an issue, I’ll look into it and ra…

Hi Melissa, just following up on this. After downloading the mesh I left it as a zip and reuploaded it with the OpenFOAM format and it all worked no issue. Maybe you unzipped it or specified a different format? Kind regards, Darren

Hi Darren, I was physically there to observe Msheu uploading the mesh. It really didn’t seem to work. Could you make the file available for me to try out again in person with Msheu? Also just to check the file is it a geometry or is it a completed mesh? Regards, Barry

I’m really sorry I went and did a project clear out (I had a lot of projects) and this was one I deleted. So she didn’t copy the setup at all? Cheers, Darren

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CFD simulation for rotating propeller

Project Support

msheu November 20, 2017, 11:35am 19

Hi Darren

Thanks for the mesh but I’m having trouble uploading the file.

Any ideas?