EXPERIMENTAL FACILITY FOR MODELING HEMODYNAMICS OF CARDIOVASCULAR SYSTEM ELEMENTS
N.I. Mikheev1, V.M. Molochnikov1,2, A.A. Paereliy1, N.D. Pashkova1,2
1Federal Research Center “Kazan Scientific Center of the Russian Academy of Sciences”, Kazan, Russia
2Kazan National Research Technical University, Kazan, Russia
Keywords: experimental facility, research methodology, unsteady flow, local vascular hemodynamics, anastomosis region, flow rate waveform, femoral artery hemodynamics, instantaneous velocity vector field, limiting operating mode
Abstract
A specialized experimental facility developed by the authors is described. The facility enables in vitro blood flow studies in vascular sections of various configurations while maintaining similarity to real hemodynamic conditions. Results of its performance evaluation are presented. The facility is shown to have several advantages over existing analogs. It enables flow visualization and measurements of flow parameters under both steady and pulsating conditions. The facility produces a waveform that matches the actual blood flow variation over a cardiac cycle, including a high-amplitude antegrade flow peak and a retrograde flow (flow rate reversal) segment. It also demonstrates stability and high reproducibility of the specified operating conditions. Experimental results obtained with this facility can be used to validate existing and future numerical models of vascular hemodynamics.
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