The local granular phase rheology in bedload transport is investigated from discrete numerical simulations. The numerical model is based on a coupled Discrete Element Method with a 1D space-averaged fluid momentum balance. Using this model the averaged granular stress tensor profile can be computed from particle-particle interactions. In bed-load transport, the granular media exhibits quasi-static and dynamical behaviors. This physical situation can be used as a rheometer and the actual granular rheology can be deduced from a single simulation. Preliminary results suggests that the denser part of the flow, close to the static bed, is well described by a a μ(I)/Φ(I) rheology. Above this layer, the dense granular flow rheology fails to explain the observed shear and normal stresses, meaning that other mechanisms come into play
