Investigation of hydraulic resistance of pulsating flows of viscous fluid in elastic pipe

In recent years, flexible pipes made of synthetic polymer materials are being rapidly introduced into practice. Pulsating currents important in driving water and other liquids main pipes. This paper examines the pulsating a viscous incompressible fluid an elastic pipe. The necessary hydrodynamic parameters will be determined by solving problem, such as distributions pressure, velocity, flow rate, propagation velocity pressure pulse wave, their attenuation. For first time this article, decrease hydraulic resistance through due to elasticity wall determined. dependence dimensionless value wave on vibrational number α is studied. speed compared with Moens-Korteweg, c ∞ significant differences between them found. reciprocal attenuation, related wavelength, also studied; it shown that attenuation free at lower values Womersley parameter, practically equals zero, large which asymptotically approaches unity [1-9].