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This paper describes the flow characteristics of the structure of stenosis tubes with pulsating flow. Stenosis in blood vessels causes the separation and the stagnation of the flow, and are present in the normal bloodstream. Furthermore, blood vessel stenosis contains a fluid mechanics factor, since it is closely related to the flow via the generation of shapes, such as the divergence points and the curved parts. In the present study, investigated disorders of the flow in the flow by examining the flow characteristics of strictures which have hardly been examined to date. In this research, the flow by PIV was made visible to clarify the formation mechanism of blood vessel stenosis, and a detailed numerical analysis of the relationship between the flow characteristics and the shape changes was carried out.

Flow characteristics for structure of stenosis tubes with pulsating flow