Experimental investigation of pulsatile flows in tubes.
Based on cam-piston-valve arrangement, a mechanical pulsatile flow generator is designed to investigate sinusoidal flow and other types of pulsatile flow in straight rigid tube. Measurement reveals the relation between pressure gradient and flow rate. Numerical simulation using the k-epsilon turbulence model are carried out to compare the pulsatile flow produced by the generator with a sinusoidal flow and a physiological flow in a rigid tube. The results show that the pulsatile flow generated has similar dynamic properties to the physiological flow. Hence, the present setup can be used for in-vitro investigation of biofluid phenomena.
Shi
Z D
ZD
Department of Mechanical & Production Engineering, National University of Singapore, Singapore, Republic of Singapore.
Winoto
S H
SH
Lee
T S
TS
D001011:Aorta / Q000502:physiology; D018056:Hemorheology; D006801:Humans; D008955:Models, Cardiovascular; D009716:Numerical Analysis, Computer-Assisted; D011312:Pressure; D011673:Pulsatile Flow; D015203:Reproducibility of Results; D014783:Viscosity