Dense suspensions of noncolloidal particles exhibit novel features. In a non-homogeneous shear flow, it is observed that particles migrate from the high shear rate region to the low shear rate region. This phenomenon is called Shear-Induced Migration (SIM). The Suspension Balance Model (SBM) of Nott and Brady (1994) has been taken as an approach to model SIM. Where the SIM is attributed to the diffusive fluxes that arise naturally from gradients in the particle phase stresses. However, there are still unanswered questions and an ongoing debate on the nature of particle stress in the dense suspensions. Recent experiments show that the SBM not only fails in predicting the steady-state distribution of particle phase in the flow of dense suspensions but also fails in predicting the kinetics of the SIM. In addition, recent theoretical works question the derivation of the SBM and the simple supposition of drag closures in inhomogeneous flows of dense suspensions. We have designed and built an original setup to revisit available drag closures via performing well-resolved experiments. We present our preliminary results of a drag closure taking into account inhomogeneities of the solid phase volume fraction and the shear rate.