The energy released during an explosion results in the rapid expansion of high temperature gaseous products leading to the formation of a strong compression wave known as blast wave. The blast wave is essentially an unsteady shock wave, with its strength decaying over time. The peak overpressure of a blast wave is capable of imparting devastating crushing force on objects and structures encountered along its shock path. Therefore, blast wave mitigation (BWM) strategies offering robust protection against such destructive loads assume significance in both military and civilian applications. To this end, a number of BWM strategies have been attempted in the open literature, which are categorised as either reflection or absorption based approaches. Methods that absorb or dissipate energy necessitate the design of sacrificial structures that can deform, as the energy of the blast wave is converted into strain energy. In this regard, cellular materials such as polymer foams, aqueous foams, metallic foams etc., have been extensively studied. Although foam materials are suitable as a protective coating on the target structure, undesirable amplification of force values have been reported under certain loading conditions and foam thickness. This effect is known as the shock enhancement which occurs due to foam compaction against the target structure. The reflection based BWM strategies which rely on diverting the incident energy of the blast wave are also quiet popular. In this case, an array of rigid obstacles is an example of a simple setup which can offer blast protection. The feasibility of BWM approach for an intended application is largely dictated by the design constraints. Therefore, the influence of various design parameters on the effectiveness of mitigation needs careful evaluation.