Research of Nonstationary Laminar Flow of Decelerating Viscous Fluid in Circular Cylindrical Communications

Abstract:

Flow of viscous fluid in automation and control hydraulic systems usually is nonstationary. In such conditions research of viscous fluid unstable flow are important first of all for obtaining hydraudynamic parameters of flow and secondly, they will enable to design the system accurately and provide efficient performance of an actuator. Study of nonstationary flow of viscous fluid in cylindrical canals of circular cross-section was carried out when pressure gradiend of stationary moving flow suddenly decreases resulting in slow down of motion of fluid particles. As a result quadrically parabolic pattern of velocities is changed and their rearrangement occurs leading to a change of the flow hydraudynamic parameters. A boundary problem has been defined for the above conditions, preliminary and initial conditions have been determined and respective hydraudynamic parameters of the flow obtained. These parameters enable to reveal energy losses formation mechanism and evaluate their measure.

• Periodical: Advanced Materials Research (Volume 1020)
• Pages: 361-366
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1020.361
• Online since: October 2014
• Authors: H.V. Tokmajyan*, T.A. Sarukhanyan
• Keywords: Effective Cross-Section, Fluid Flow Velocity, Laminar Flow, Pressure Gradient, Tangential Stress, Viscous Fluid

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