Flow field velocity measurement of liquid interaction with rigid and flexible wall

Darina Jasikova, Michal Kotek, Frantisek Pochyly, Vaclav Kopecky, J. Novosad, P. Dančová
2019 EPJ Web of Conferences  
The motivation of this research was to determine the flow interactions on the pulsation and to express the influence on the flow character in the rigid and flexible tube. The character of Newtonian liquid was measured with the Particle Image Velocimetry method (PIV). Here, we used glass tube and Tygon tube for our comparison. We build the circuit equipped with membrane pump for generating pulsatile flow. The results were analysed over the pulse period sampled in 10 time steps. The fluid flow
more » ... . The fluid flow varied from Re 560 to Re 8800. The velocity profiles uncovered backward revers flows closed to the wall. These structures are prevailing close to flexible wall. The effect of interaction between pulsatile liquid flow and flexible wall was experimentally proved.
doi:10.1051/epjconf/201921302031 fatcat:xpact4qmxbff3gmi7e26uvxuyq