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On the Unsteady, Dynamic Response of Phase Changes in Hydraulic Systems

Brennen, Christopher (1979) On the Unsteady, Dynamic Response of Phase Changes in Hydraulic Systems. In: Two-phase momentum, heat and mass transfer in chemical, process, and energy engineering systems. Series in thermal and fluids engineering. Vol.2. Hemisphere Publishing , Washington, DC, USA, pp. 747-758.

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This paper is concerned with the unsteady, dynamic behavior of hydraulic systems and, in particular, with the dynamic characteristics of internal flows involving phase-change and two-phase flows. This emphasis is motivated by the large number of different flows of this kind which exhibit "active" dynamic characteristics (see Section 3) and therefore have the potential to cause instability in the whole hydraulic system of which they are a part (see Section 4). We begin, first, with a discussion of the form and properties of dynamic transfer functions for hydraulic systems. Then, following the discussion of a number of examples we present an analysis leading to the transfer function for a simple phase-change and demonstrate its "active" dynamic character.

Item Type:Book Section
Additional Information:Based on papers presented at the seminar of the International Centre for Heat and Mass Transfer, held in Dubrovnik, Sept. 4-9, 1978. This work was supported by the National Science Foundation under Grant Eng. 76-11225. Support on the cavitating pump dynamics by NASA under contract NAS 8-28046 is also gratefully acknowledged. The author wishes to thank Professor Allan Acosta for his valuable advice.
Series Name:Series in thermal and fluids engineering
Record Number:CaltechAUTHORS:BREtpmhmtcpees79
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:189
Deposited By: Christopher Brennen
Deposited On:07 Jan 2005
Last Modified:02 Oct 2019 22:31

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