Under relaxation factors
 

In some cases in my work the solution is did not converge untel I changed the value of under relaxation factors My question is is changing of the value of URF affect the results i.e the accuracy of solution

thank you

Re: Under relaxation factors
 

No, it will not affect solution accuracy as long as your solution converges (with certain mointor indications: residuals, force, surface...).

Re: Under relaxation factors
 

is that is mean when I choice any value for these factors it will never affecting the results and solution accuracy just enhance the convergance.?

Re: Under relaxation factors
 

usually we use to set the URF at a low value that what generally it is suggested everytime , but it does effect the solution more over whenever your solution conveges it dosen't mean that the analysis u run is correct always cross verify ur results with contours , graphs and compare the theorotical value and and the values which were calculated from fluent.

only then you can say that ur proposed analysis is correct.