The basic equations for treating a multicomponent medium: stars, gas clouds and an ambient gas are discussed elsewhere (Yorke, et al., this meeting). Here we apply the 2-D multicomponent code to the problem of explosions in a clumpy medium (cool “clouds” embedded in a warm T ~ 104K or hot T ~ 106K gas). The evolution of supernova remnants and supershells in media of varying degrees of dumpiness are compared and contrasted to the results of earlier calculations.