I am new in Simscale, I don’t know much about it. I am trying to create an internal flow volume using the closed inner region flow volume extraction for the airflow analysis inside a bus that i am currently working on. My CAD model was created with Autodesk Inventor 2017. I am getting an error saying “A closed region could not be created. Please make sure to cover all openings with boundary faces” when i try to create a flow volume extraction as shown in the attached image.
Please assist/advise on how i can resolve this.
Here in the link to my project: https://www.simscale.com/workbench/?pid=9096602946013873155&mi=operation%3A38%2Cgeometry%3A37&mt=GEOMETRY_OPERATION