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KINEMATIC FLOW ON LONG IMPERMEABLE PLANES 1
Author(s) -
Overton D. E.
Publication year - 1972
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1972.tb05262.x
Subject(s) - laminar flow , turbulence , kinematic wave , mechanics , hydrograph , kinematics , reynolds number , laminar turbulent transition , flow (mathematics) , laminar sublayer , geology , physics , surface runoff , classical mechanics , ecology , biology
An analysis of more than 200 overland flow hydrographs generated by simulated rainfall on long impermeable planes showed that kinematic waves prevailed over dynamic waves. Although laminar flow appears to occur at low flows, most flows appear to be either in the transition from the laminar to the turbulent state or in a fully developed turbulent state. Location of the laminar‐turbulent transition could not be explained in terms of Reynolds number alone. The transition was significantly affected by rainfall intensity‐a factor which rendered quantification of the transition indeterminate. However, the error involved in treating all flows as turbulent would be small with the resulting analysis made considerably less complex.