“…Sugiyama et al (1996) analysed the influence of the degree of submerging the free end of a silicon pipe on the possibility of losing stability through flutter. The theoretical and experimental research of cantilever pipes aspirating fluid were also conducted by Kuiper et al (2007), Kuiper and Metrikine (2008), Giacobbi et al (2012), mainly in order to determine natural frequencies and examine stability.…”