Hello Rinaldo Gonzalez Galdamez
                            
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                                                Posted:
                            
                                2 decades ago                            
                            
                                18 ott 2010, 07:56 GMT-4                            
                        
                        
                                                    Got an answer?                                                
                                                
                            Got an answer?                        
                                                
                                                                                                            
                                             
                                            
                            
                                                                                        
                                Rinaldo Gonzalez Galdamez
                                                                                                                                                 
                            
                         
                                                
    
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                                                Posted:
                            
                                2 decades ago                            
                            
                                18 ott 2010, 09:31 GMT-4                            
                        
                        
                                                    Hello,
I never got an answer through this forum but I did get a couple of replies in the COMSOL yahoo forum. I have been able to set up a model using the phase field method. The level set method does not work well for high velocity flows. Besides the usual multiphase flow settings, numerical stabilization is needed. Also, I set a coupling variable for the surface tension in the subdomains where fluids are present, this seemed to help.
Are you trying to model something similar?
                                                
                                                
                            Hello,
I never got an answer through this forum but I did get a couple of replies in the COMSOL yahoo forum. I have been able to set up a model using the phase field method. The level set method does not work well for high velocity flows. Besides the usual multiphase flow settings, numerical stabilization is needed. Also, I set a coupling variable for the surface tension in the subdomains where fluids are present, this seemed to help.
Are you trying to model something similar?
                        
                                                
                                                                                                            
                                             
                                            
                                                
    
        Please login with a confirmed email address before reporting spam
     
    
 
                                                Posted:
                            
                                2 decades ago                            
                            
                                18 ott 2010, 09:42 GMT-4                            
                        
                        
                                                    Yep,
I've started to think about the problem... May you address me to the mentioned helpful material?
And thank you for the respond!
Stephan                                                
                                                
                            Yep,
I've started to think about the problem... May you address me to the mentioned helpful material?
And thank you for the respond!
Stephan                        
                                                
                                                                                                            
                                             
                        
                        
                            
                                                                                        
                                Rinaldo Gonzalez Galdamez
                                                                                                                                                 
                            
                         
                                                
    
        Please login with a confirmed email address before reporting spam
     
    
 
                                                Posted:
                            
                                2 decades ago                            
                            
                                28 ott 2010, 13:27 GMT-4                            
                        
                        
                                                    Hello,
I apologize for the late response.
Look carefully into the "Boiling Water" tutorial. specifically into the "delta" scalar expression for the integration coupling variables- subdomain variables. Also look at the settings for the artificial diffusion.
I integrated these changes into my model and worked fine.  let me know how it goes.                                                
                                                
                            Hello,
I apologize for the late response.
Look carefully into the "Boiling Water" tutorial. specifically into the "delta" scalar expression for the integration coupling variables- subdomain variables. Also look at the settings for the artificial diffusion.
I integrated these changes into my model and worked fine.  let me know how it goes.