Viscosity and Boundary Effects in the Dynamic Behavior of Hydraulic Systems

[+] Author and Article Information
Hirsh Cohen, Yih-O Tu

International Business Machines Corporation, Research Center, Yorktown Heights, N. Y.

J. Basic Eng 84(4), 593-600 (Dec 01, 1962) (8 pages) doi:10.1115/1.3658719 History: Received December 20, 1960; Online November 04, 2011


The use of hydraulic mechanisms in low-energy transfer and information-transmittal devices requires a working understanding of dynamic hydraulic behavior. In this paper the effects of fluid viscosity and wall interference on wave motion in a simple hydraulic device are considered. It is shown that for the applications considered these phenomena may be treated by boundary-layer methods. Calculations are carried out to show their effect on piston displacement, and these effects are compared with the behavior when viscosity is not taken into account.

Copyright © 1962 by ASME
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