Robert Koslover
                                                                                                                                                    Certified Consultant
                                                         
                            
                         
                                                
    
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                                                Posted:
                            
                                3 years ago                            
                            
                                28 mar 2023, 18:38 GMT-4                            
                        
                        Updated:
                            
                                3 years ago                            
                            
                                28 mar 2023, 18:41 GMT-4                            
                        
                        
                                                    Your geometry still has some issues and your mesh could use some work too, to allow smoother variations of field quanties.  You also aren't modeling any surrounding air, so that introduces additional errors in your computation.  However, if your main concern is getting past the error message, then change the solver to "Direct" instead of the default iterative solver, and it will run to completion.  If you fix all the other issues, you might even get the iterative solver to work, but the direct solver is more tolerant.
    -------------------
    Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara                                                 
                                                
                            Your geometry still has some issues and your mesh could use some work too, to allow smoother variations of field quanties.  You also aren't modeling any surrounding air, so that introduces additional errors in your computation.  However, if your main concern is getting past the error message, then change the solver to "Direct" instead of the default iterative solver, and it will run to completion.  If you fix all the other issues, you might even get the iterative solver to work, but the direct solver is more tolerant.