Dear SimScale user and team, is there a possibilty to add additional CAD volumes/ solids into an existing CAD scene (in my case with a stl main geometry)? Background for that question is that I want make a simulation with turning rim stars. General problem is I can only use stl file of main geomet…

Hello @jjanczyk , You are right, until very recently the only way to create cell-zones was through the use of volumes/volume-sets. However, a couple of weeks back, the platform was upgraded to allow the definition of cell-zones through a combination of faces as well. Please take care that the choic…

Hi @jjanczyk , On your local system, you can open the STEP geometry and add the sub-geometry that defines the cellZone Then, you can convert this modified STEP back to an STL geometry Upload this STL to SimScale. In the meshing settings, you can then create a cell-zone from the newly added faces. B…

Hi @AnnaFless , thank you very much for your answer but unfortunately that does not work. I tried this way before I tried the way over geometry primitives. When you convert a step-file into stl, also if you have different body volumes inside your model, you only get back one solid stl file which c…

Hi @sjoshi , thanks for your message. I will try it and give feeback asap. Thank you very much.

Hi @sjoshi , @AnnaFless , now I tried to work with faces for MRF but without success. I tried to mesh the geometry 3 times with two different geometry variants but got error messages on all operations. In the output window in all operations it is written that generate of MRF zone will go wrong for t…

Hi @jjanczyk , Thank you for sharing these results - we’re looking into your project, and will update you as soon as we have some insights.

Hi again @jjanczyk . There are three issues that I wish to share with you: Cell-zone creation: First off, your procedure of creating was spot-on, so there is nothing wrong there. The warning about one of the cell zones being open that you see in the message box is because, according to OpenFOAM’s…

Hello @jjanczyk , The upgrade for cell zone creation was published today - your meshing job is now successful. I downloaded and post-processed the mesh on ParaView locally. The cell zones have been created as per definition. Mesh (without edges): [image] Rotating cell zone (front wheel): [imag…

Hi @sjoshi , thank you very much for your message and your support. I will try it immediately :slight_smile:

Hi @sjoshi , I tested the simulation yesterday night … and yes it runs with success. Thank you very much again. Attached a screenshot of surface velocities with vector arrows: [image]

SimScale CAE Forum

Import of additional solid volumes into a CAD scene

Using SimScale CAD & Meshing

jjanczyk November 30, 2016, 4:44pm 9

Hello @sjoshi,

thanks for your answer. I will try it again with regards of your tips and give you feedback asap.