Abstract
A numerical analysis is carried out for oscillatory flow of a viscous incompressible fluid through thin-walled elastic tubes with small curvature. A wave propagation analysis for sinusoidal input pressure disturbance yields a resulting asymmetrical flow pattern and the secondary flow pattern induced by centrifugal effects due to curvature. Essential differences between the effects of curvature on steady and oscillatory flows are obtained. A complicated quadrihelical secondary flow pattern is obtained. The flow pattern and computed wall shear in curved tubes are determined and compared with those of oscillatory flow through straight elastic tubes. Parameters in the computation are chosen to correspond to physiological flows at arterial sites of small curvature.
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Chandran, K.B., Swanson, W.M., Ghista, D.N. et al. Oscillatory flow in thin-walled curved elastic tubes. Ann Biomed Eng 2, 392–412 (1974). https://doi.org/10.1007/BF02368096
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DOI: https://doi.org/10.1007/BF02368096