Negatively Buoyant Flow in a Diverging Channel. I: Flow Regimes
Publication: Journal of Hydraulic Engineering
Volume 113, Issue 6
Abstract
Negatively buoyant (plunging) flow entering a horizontal and diverging channel has been studied in the laboratory. Such flow is found at the heads of reservoirs and near effluent sites into lakes. Six flow regimes could be distinguished in the experiments. The flows are similar to nonbuoyant, twodimensional diffuser flow, but negative buoyancy adds several variations. The dependence of the flow regimes on the inflow channel aspect ratio, inflow densimetric Froude number, diffuser half‐angle, and channel‐to‐diffuser transition are presented. The experimental results can be used to predict if and where flow separation will occur and what flow regimes will be present.
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Published In
Journal of Hydraulic Engineering
Volume 113 • Issue 6 • June 1987
Pages: 716 - 730
Copyright
Copyright © 1987 ASCE.
History
Published online: Jun 1, 1987
Published in print: Jun 1987
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