The study of tidal systems: hydraulic models

  • D. M. McDowell
  • B. A. O’Connor
Part of the Civil Engineering Hydraulics Series book series (CEH)


The mathematical and electrical models that were described in the last two chapters can be set up and operated quickly and cheaply, but they represent an estuary as a connected system of elements, each of which has physical characteristics that are either averaged over its length or are lumped together at its interfaces with adjacent elements. Major changes of cross-section, reclamation or tidal capacity can be reproduced by changing the value of the parameters describing each element; but changes in flow resistance, bed form and sediment transport in a three-dimensional situation cannot be forecast adequately. Moreover, the number of finite sized elements is limited by the size of available computer. As a result, the possible accuracy of prediction is quite low. Although it is theoretically possible to reproduce behaviour of flow in three dimensions, the practical difficulties of doing so with sufficient accuracy are considerable.


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Copyright information

© D. M. McDowell and B. A. O’Connor 1977

Authors and Affiliations

  • D. M. McDowell
    • 1
  • B. A. O’Connor
    • 1
  1. 1.Simon Engineering LaboratoriesUniversity of ManchesterUK

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