Pulsing blood flow in capillary tubes

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Abstract
Pulsatile flow has been studied in rigid capillary tubes of 73, 295, and 313 [mu] diameter. It was found that pulsatile flow through rigid capillary tubes resulted in energy losses similar to those encountered in steady flow when the pulsing flow data are expressed in terms of mean pressures and average velocities. The blood viscometry was characterized by Casson''s equation. The flow rate range was such that blood yield stress effects were prominent. In the 73-[mu] tube, the marginal plasma layer was evident. In small vessels where vessel elasticity has a negligible effect, this makes possible the analysis of physiological flow.

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