Elastic Theory for a Simple Pipe

  • John Pickford
Part of the Macmillan Civil Engineering Hydraulics book series (CEH)


In the theory in Section 2.2 we assumed that water is completely incompressible and that a pipe may be completely rigid. The pressure changes obtained in this way are reasonably accurate if the change of flow is slow and smooth. If, however, the change of flow is sudden, i.e. if T = 0, where T is the time of the valve movement, then dv/dt would be infinite and the pressure increase or decrease would be infinite. Experiments show that the change of pressure is finite.


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Copyright information

© John Pickford 1969

Authors and Affiliations

  • John Pickford
    • 1
  1. 1.Department of Civil EngineeringLoughborough University of TechnologyLoughboroughUK

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