. Design for navigation improvements at Nome Harbor, Alaska : coastal model investigation. Harbors; Navigation; Hydraulic models. DIGITAL EQUIPMENT CHANNEL SELECTION CIRCUITRY Mi "1PLEXER iND f .OG TO MTAL C /ERTER -» STRIP CHART PACKS II—-III DIGITAL OUTPUT CONTROL LINES CENTRAL PROCESSING UNIT DIGITAL TO ANALOG CONVERTER LINES SELECTED FOR DISPLA\ AND RECORDING CHANNEL SELECTION CIRCUITRY WAVE ROD AND POTENTIOMETER LINE PAIRS FOR EACH WAVE STAND WAVE STAND CALIBRATION STATUS LIGHTS PROGRAMS, TEST PARAMETERS, AND DATA. WAVE GENERATOR Figure 6. Automated Data Acquisition and Control Syste
. Design for navigation improvements at Nome Harbor, Alaska : coastal model investigation. Harbors; Navigation; Hydraulic models. DIGITAL EQUIPMENT CHANNEL SELECTION CIRCUITRY Mi "1PLEXER iND f .OG TO MTAL C /ERTER -» STRIP CHART PACKS II—-III DIGITAL OUTPUT CONTROL LINES CENTRAL PROCESSING UNIT DIGITAL TO ANALOG CONVERTER LINES SELECTED FOR DISPLA\ AND RECORDING CHANNEL SELECTION CIRCUITRY WAVE ROD AND POTENTIOMETER LINE PAIRS FOR EACH WAVE STAND WAVE STAND CALIBRATION STATUS LIGHTS PROGRAMS, TEST PARAMETERS, AND DATA. WAVE GENERATOR Figure 6. Automated Data Acquisition and Control System the change in water-surface elevation with respect to time, were recorded on magnetic disks. These data then were analyzed to obtain the parametric wave data. A water circulation system (Figure 4), consisting of a (6-in.), perforated-pipe water-intake manifold, a (1-cfs) pump, and sonic flow transducers with a multiprocessor transmitter, was used in the model to reproduce steady-state flows through the Snake River that corresponded to selected prototype river flows. The magnitudes of river currents were measured by timing the progress of weighted floats over known distances. A (2-ft) (horizontal) solid layer of fiber wave absorber was placed along the inside perimeter of the model to dampen wave energy that might otherwise be reflected from the model walls. In addition, guide vanes were placed along the wave generator sides in the flat pit area to ensure proper formation of the wave train incident to the model contours. 10 Chapter 2 The Model. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bottin, Robert R; Acuff, Hugh F; United States. Army. Corps of Engineers. Alaska District; U. S. Army Engineer Waterways Experiment Station; Coastal and Hydraulics Laboratory (U. S. Army Engine
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Keywords: ., bookc, bookcentury1900, booksubjectharbors, booksubjectnavigation
