The Stability of a Simple Surge Tank

[+] Author and Article Information
R. K. Duggins

Nottingham University, Nottingham, England

J. Basic Eng 90(1), 97-102 (Mar 01, 1968) (6 pages) doi:10.1115/1.3605071 History: Received August 01, 1967; Online November 03, 2011


An equation is derived to describe small oscillations in a simple surge tank for a wider range of operating conditions than hitherto considered. It is presented in a new non-dimensional form which facilitates an immediate prediction of surge phenomena when small disturbances are imposed on any given set of steady-state conditions. A characteristic of general form is assumed for conduit friction, and the effect is considered of deviation from the condition of constant hydraulic power delivered to the turbine. Some experiments have been carried out with a laboratory model simulating a variety of steady-state operating conditions, and surge measurements are presented for comparison with the calculated behavior.

Copyright © 1968 by ASME
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