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Momentum Equation for Analyzing Varied Steady Flows and Spatially Varied Increasing Flows
Momentum analysis is the choice where forces related to drag are either negligible or possibly foreseen (e.g., drag force due to bridge pier). The hydraulic jump, the channel junction, and a spatially varied increasing flow represent three applications that may be analyzed using a momentum balance. This chapter develops the one‐dimensional momentum equation, which was useful in analyzing hydraulic jumps and channel junction analysis. It provides a brief survey of selected rapidly varying flows. Spatially (gradually) varied flow has a nonuniform discharge resulting from the addition or subtraction of water along the channel. HEC‐RAS can numerically accommodate increasing and decreasing flow profile analyses. Increasing flow is simulated with a series of stream junctions, which is supported by HEC‐RAS. A simple solution was given for predicting the length of a grate for discharging flow in a channel.
Momentum Equation for Analyzing Varied Steady Flows and Spatially Varied Increasing Flows
Momentum analysis is the choice where forces related to drag are either negligible or possibly foreseen (e.g., drag force due to bridge pier). The hydraulic jump, the channel junction, and a spatially varied increasing flow represent three applications that may be analyzed using a momentum balance. This chapter develops the one‐dimensional momentum equation, which was useful in analyzing hydraulic jumps and channel junction analysis. It provides a brief survey of selected rapidly varying flows. Spatially (gradually) varied flow has a nonuniform discharge resulting from the addition or subtraction of water along the channel. HEC‐RAS can numerically accommodate increasing and decreasing flow profile analyses. Increasing flow is simulated with a series of stream junctions, which is supported by HEC‐RAS. A simple solution was given for predicting the length of a grate for discharging flow in a channel.
Momentum Equation for Analyzing Varied Steady Flows and Spatially Varied Increasing Flows
Tollner, Ernest W. (author)
Open Channel Design ; 128-143
2021-09-17
16 pages
Article/Chapter (Book)
Electronic Resource
English
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