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RE: what is virtual radius and ideal element size
Hi Emilia, the link shared by Carlos is valid, in this white paper you can find the mathematical relation
Search in google white papers feflow vol v and in the first results an automatic pdf file will be downloaded. Then, on page 49 you will find a better explanation. Also, if you have problems you will find the same information in our FEFLOW Book https://link.springer.com/book/10.1007/978-3-642-38739-5 page 690.