Flow Table Study of Cook Inlet, Alaska
ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICSLAB
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Complex flow patterns in upper Cook Inlet in the vicinity of the Port of Anchorage re simulated using a flow table. Initially, two idealized models of the inlet were constructed with terraced layers representing the bathymetry. Encouraging test results prompted construction of a model with three-dimensional bathymetry. Both ebb and flood maximum tide flows could be examined by reversing the models on the flow table. The intriguing flow patterns of Cook Inlet were visualized using floating particles and by dye injection. Strong horizontal and vertical mixing was evident through the model particularly in the lee of headlands. The flow table models indicated that deposition of fine sediment at the Port of Anchorage may be caused in part, by ebb flow separation at the upstream Cairn Point that creates a low-flow region at the port. Experimentation with the models also provided insight into potential improvements to dredge material disposal practices.
- Physical and Dynamic Oceanography
- Fluid Mechanics