Published 1984 | Version v1
Miscellaneous Metadata-only

Dynamic processes and their effects in pipe systems

Creators

  • 1. Stuttgart Univ. (Germany, F.R.). Inst. fuer Wasserbau

Description

The calculation of shock waves and their effects on pipe systems is a prerequisite of the design and dimensioning of piping. The characteristics method is used to solve the problems relating to the system of two simultaneous, hyperbolic partial differential equations, consisting of a continuity equation and an equation of motion. The reduction to dimensionless quantities allows a general representation of the pressure and velocity distributions along a one-tube piping between a feeding tank and an isolating valve, a problem that is of special interest in this context. This representation takes into account frictionless and frictional flow as well as different shut-off times of the gate valve and various shock wave propagation velocities. (orig./HP)

Availability note (English)

Available as manuscript MS 1277/84 from VCH Verlagsgesellschaft m.b.H., Weinheim (Germany, F.R.).

Abstract (German)

Die Berechnung von Druckstoessen bei der Auslegung von Rohrleitungen ist unerlaesslich. Zur Loesung des aus Kontinuitaets- und Bewegungsgleichung gebildeten Systems zweier simultaner hyperbolischer partieller Differentialgleichungen erster Ordnung wird das Charakteristiken-Verfahren herangezogen. Die Zurueckfuehrung auf dimensionslose Groessen gestattet eine allgemeine Darstellung der besonders interessierenden Druck- und Geschwindigkeitsverteilung laengs einer einstraengigen Rohrleitung, die zwischen einem sie speisenden Behaelter und einer Absperrarmatur verlaeuft. Dabei werden reibungsfreie und reibungsbehaftete Stroemungen, ferner unterschiedliche Schliesszeiten des Rohrschiebers und unterschiedliche Druckwellenfortpflanzungsgeschwindigkeiten betrachtet. (orig./HP)

Additional details

Additional titles

Original title (German)
Dynamische Vorgaenge in Rohrleitungssystemen und ihre Auswirkungen

Publishing Information

Imprint Pagination
27 p.

Conference

Title
DECHEMA annual meeting '83.
Dates
15-16 Jun 1983.
Place
Frankfurt am Main (Germany, F.R.).

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
16080887
Subject category
S42: ENGINEERING;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
DIAGRAMS; DYNAMIC LOADS; FEEDWATER; FLUID MECHANICS; HOUSES; PARTIAL DIFFERENTIAL EQUATIONS; PIPELINES; SHOCK WAVES; VALVES
Descriptors DEC
BUILDINGS; CONTROL EQUIPMENT; DIFFERENTIAL EQUATIONS; EQUATIONS; EQUIPMENT; FLOW REGULATORS; HYDROGEN COMPOUNDS; INFORMATION; MECHANICS; OXYGEN COMPOUNDS; WATER

Optional Information

Notes
The pertinent synopsis is published in Chem.-Ing.-Tech. (1984) v. 56(10).