Experimental study of sound produced by flow through a simulated vascular stenosis

Purpose: An in vitro experiment is carried out in order to study the acoustic effects of a vascular stenosis in people and provide correlations between these effects and parameters relevant to the fluid dynamic and acoustic processes. Material and methods: For this purpose, we measure the sound produced when water flows through an elastic tube which is either unobstructed or contains a rigid-walled insertion (water, tube and an insertion simulate the blood, a larger blood vessel and a stenosis, respectively). The sound is measured at the outside of a large annular elastic container (which represents the human th…