Comments on the article 'Beyond Sichardt-empirical equations for the determination of the radius of influence of a well' by Anika Desens and Georg J. Houben, Grundwasser 27 (2), 131-141 (2022)

摘要

In their article, the authors recommend correction factors to extend the validity of the non-dimensional range formula according to Sichardt. In the commentary, it is explained that Sichardt's formula does not take into account an essential aspect: the pumping time. Alternatively, the range formula is discussed, which can be derived from Theis' well function, and an application example is presented. This approach seems to be more helpful than the way via correction factors, especially in practice.