Influence of the relaxation properties of a non-Newtonian fluid on the transient process
Zh. A. AkilovSamarkand State University, Samarkand, UzbekistanMamasoli DzhabbarovSamarkand State Architectural and Civil Engineering Institute named after Mirzo Ulugbek, Lolazor str., 70, Samarkand, 140147, UzbekistanYu. GaybulovSamarkand State Architectural and Civil Engineering Institute named after Mirzo Ulugbek, Lolazor str., 70, Samarkand, 140147, Uzbekistan
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Annotatsiya
In the article, on the basis of the Oldroyd rheological model, a transient process is considered during unsteady laminar motion of a viscoelastic fluid in a circular cylindrical pipe. The influence of the relaxation time and delay on the transient process has been studied. A formula is proposed for determining the coefficient of hydraulic resistance in the laminar motion of a viscoelastic fluid for the non-stationary case.
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