Effect of V-Shaped Groove Microstructure on Blood Flow Resistance in Bionic Artificial Blood Vessels

This study aims to investigate the blood flow in bionic artificial blood vessels and to reduce the resistance to blood flow, the drag reduction characteristics of V-shaped groove drag reduction microstructures in artificial blood vessel structures were investigated in depth. By varying the parameters of incoming flow velocity, groove width, and groove depth, the effect of various variable conditions on the drag reduction effect of the grooves was investigated, and the flow field characteristics and drag reduction effect of the V-shaped groove microstructure in the artificial blood vessel were obtained. A detailed analysis of the effect of velocity and groove size on the drag reduction effect of the groove was also carried out to demonstrate the drag reduction mechanism of the V-shaped groove microstructure and to summarize the variation law of the drag reduction rate of the V-shaped groove. The results show that the resistance reduction rate of the V-shaped groove microstructure decreases with the increase of blood flow velocity, increases with the increase of groove width, and increases and then decreases with the increase of groove depth. The velocity range used in this paper is 0.3-0.6 m/s, the groove width varies from 0 to 0.3 mm, and the groove depth varies from 0 to 0.3 mm.

Automated summary

This study aimed to investigate blood flow in bionic artificial blood vessels and explored the drag reduction characteristics of V-shaped groove microstructures in artificial blood vessels to reduce resistance. By varying flow velocity, groove width, and groove depth, the effect of different conditions on drag reduction was analyzed, and the flow field characteristics and drag reduction effect of the V-shaped groove microstructure were obtained. The study also examined the impact of velocity and groove size on drag reduction to understand the mechanism and variation law of the V-shaped groove. Results showed that the resistance reduction rate of the V-shaped groove microstructure decreased with increasing blood flow velocity, increased with increasing groove width, and increased and then decreased with increasing groove depth. The velocity range used in the study was 0.3-0.6 m/s, groove width varied from 0 to 0.3 mm, and groove depth varied from 0 to 0.3 mm.