Comparison of cell- and vertex-centered finite-volume schemes for flow in fractured porous media

• The newly presented schemes lead to smaller linear systems on unstructured grids. Additional degrees of freedom are introduced locally capture discontinuities. Flux mortars at the interfaces allow for strong incorporation coupling conditions. Flow in fractured porous media is high relevance a variety geotechnical applications, given fact that they ubiquitously occur nature and can have substantial impact hydraulic properties rock. As response this, an active field research has developed over past decades, focusing development mathematical models numerical methods describe simulate flow processes In this work, we present comparison different finite volume-based simulation by means experiments. Two novel vertex-centered approaches compared well-established terms convergence behavior their performance benchmark studies taken from literature. new show produce results good agreement with those established while leading less simplex