The accurate determination of the parameters of wall slip and the shear viscosity material function of energetic suspensions is a must for realistic simulation of their processing, especially when continuous processing methodologies are utilized. However, due to the difficulty of handling energetic materials at various relevant shear rate ranges novel methodologies are necessary for the characterization of parameters of slip and shear viscosity. Here inverse problem solution methodologies involving squeeze, rectangular slit, steady torsional and capillary flows to enable the determination of parameters of wall slip and shear viscosity for energetic suspensions will be discussed.