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Coastal and Hydraulics Laboratory Fact Sheets
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Introduction - Cvr-Chpt80007
Overview of Manual
Summary of SAM Capabilities
Theoretical Assumptions and Limitations
Theoretical Assumptions and Limitations (cont.)
Theoretical Basis for SAM.hyd Calculations
SAM.hyd Options
Normal Depth Calculations - Cvr-Chpt80014
Figure 2.1A and 2.1B. Complex Geometry using CT records, top; using X1 and GR records
Effective Surface Roughness Height, ks
Keulegan equations, rigid bed
Figure 2.2. The Iwagaki relationship (Chow, 1959)
The Iwagaki relationship
Strickler Equation
Limerinos n-value Predictor
Figure 2.4. Velocity versus hydraulic radius in a mobile bed stream
Brownlie (1983) Bed-roughness Predictor
TRANSITION FUNCTION
Figure 2.5. n-value relationships for grass cover
Table 4. Characteristics of Grass Cover
Composite Hydraulic Properties
Equal Velocity Method
Total Force Method
Conveyance Method
Compositing in a narrow-deep channel
Figure 2.7. Comparison of measured data and theoretical methods
Figure 2.8. Calculating effective depths and widths
Flow Distribution Across the Cross Section
Energy Slope Calculation
Water Discharge Calculation
Riprap Gradation Tables
Table 6. Graded Riprap Sizes
Blench Regime Equations - Cvr-Chpt80039
Blench Regime Equations (cont.) - Cvr-Chpt80040
Stable Channel Dimensions
Basic Equations for Sand-bed Streams
Basic Equations for Sand-bed Streams (cont.)
Basic Equations for Gravel-bed Streams
Basic Equations for Gravel-bed Streams (cont.) - Cvr-Chpt80045
Basic Equations for Gravel-bed Streams (cont.) - Cvr-Chpt80046
Calculating sediment discharge and concentration
Figure 2.9. Typical cross section used in analytical method
Inflowing Sediment Discharge
Figure 2.10. Graph of a family of slope-width solutions
Meander Program
Figure 2.11. Variable definitions for the Meander Program
Theoretical Basis for SAM.sed Calculations
Sediment Transport Functions
Sediment Transport Functions (cont.)
Calculations
Procedure for Calculating Sediment-Discharge Rating Curve
Data Ranges used in Development of Sediment Transport Functions
Table 12. Einstein Transport Function
Table 16. Meyer-Peter and Muller, 1948, Transport Function
Table 20. Toffaleti Transport Function
Importance of Bed-material Gradation Designation
Theoretical Basis for SAM.yld Calculations
Sediment discharge rating curve
Points of caution
Flow Hydrograph Method
Theoretical Basis for SAM.aid -- Guidance in Sediment Transport Function Selection
Description
Criteria for selecting sediment transport functions
Table 5.1. LIST OF BROWNLIE DATA SETS
Table 5.2. Sediment Transport Function Rankings for ACP Data Set
Table 5.4. Sediment Transport Function Rankings for ATC Data Set
Table 5.6. Sediment Transport Function Rankings for COL Data Set
Table 5.8. Sediment Transport Function Rankings for LEO Data Set
Table 5.10. Sediment Transport Function Rankings for MIS Data Set
Table 5.12. Sediment Transport Function Rankings for NED Data Set
Table 5.14. Sediment Transport Function Rankings for NSR Data Set
Table 5.16. Sediment Transport Function Rankings for POR Data Set
Table 5.18. Sediment Transport Function Rankings for RGC Data Set
Table 5.20. Sediment Transport Function Rankings for RIO Data Set
Table 5.22. Data ranges of the data sets referenced in SAM.aid
Table 5.22. Data ranges of the data sets referenced in SAM.aid (cont.)
Input Requirements and Program Output for SAM.hyd
Program execution - Cvr-Chpt80084
Normal Depth Calculations - Cvr-Chpt80085
Calculation Options
Figure 6-4. Simple Channel screen showing data for a not composite channel
Figure 6.5. Channel template window showing composite channel input
Figure 6.6. Bed Material Gradation input area of the Compound Channel Template
Figure 6.7. Complex geometry input window
Sample Data Sets
Sample Output Data - Cvr-Chpt80092
TABLE 8-1. CALCULATE NORMAL DEPTH; COMPOSITE PROPERTIES BY ALPHA METHOD.
TABLE 8-4. HYDRAULIC PARAMETERS FOR SEDIMENT TRANSPORT
Normal Depth Table
Flow Distribution Table
Flow Distribution Table (cont.)
Hydraulic Parameters for Sediment Transport Table
Bottom Width Calculations: Input and Output
Geometry input
Sample Output Data - Cvr-Chpt80101
Energy Slope Calculation: Input and Output
Hydraulic Roughness Calculations: Input and Output
Water Discharge Calculations: Input and Output
TABLE 9-1. CALCULATE WATER DISCHARGE; COMPOSITE PROPERTIES BY ALPHA METHOD
Riprap Size for a Given Velocity and Depth (RS-Record) Calculations
NOTE: THIS DESCRIPTION AND CODING FOR CT REFLECTS 1991 GUIDANCE
NOTE: THIS DESCRIPTION AND CODING FOR CB REFLECTS 1991 GUIDANCE
Figure 6.11. Input screen for riprap calculations for known velocity and depth.
Sample Output Data - Cvr-Chpt80110
Riprap Size for a Given Discharge and Cross Section Shape: Input and Output
Figure 6-12. Additional input needed when riprap requested on the Station-Elevation normal depth input screen
Figure 6-13. Additional input needed when riprap requested on the Channel Template Input screen
TABLE 8-1. CALCULATE NORMAL DEPTH; COMPOSITE PROPERTIES BY ALPHA METHOD
Blench Regime Equations - Cvr-Chpt80115
Blench Regime Equations (cont.) - Cvr-Chpt80116
TABLE 3. BLENCH REGIME-CHANNEL DIMENSIONS (ASCE MANUAL 54).
Stable Channel Dimensions Calculations: Input and Output
Figure 6.16. Input screen for the Supply Reach for Stable Channel Design Method Calculations
Figure 6.17. Cowan Multipliers input turned on Stable Channel Methods screen
Gravel Bed River Option
Calculate stable channel geometry
Output description
RESULTS AT MINIMUM STREAM POWER
Figure 6.18. Example slope-width graph from the stable channel dimensions calculations
Figure 6.19. Slope-width graph showing the effect of constraints on the range of solutions
Figure 6.20. The Meander Calculation screen, with input
COORDINATES ALONG ONE MEANDER WAVELENGTH
COORDINATES ALONG ONE MEANDER WAVELENGTH (cont.)
Input Requirements and Program Output for SAM.sed
Figure 7.2. Sediment transport calculations input screen
Figure 7.3. Bed Material Gradation data input screen
Sample Output Data - Cvr-Chpt80133
HYDRAULIC DESIGN PACKAGE FOR FLOOD CONTROL CHANNELS SEDIMENT TRANSPORT CALCULATIONS
TABLE 2.1. HYDRAULIC PARAMETERS
Sample of Data Written to SAM.yld Input File
Sample of Data Written to SAM.yld Input File (cont.)
Input Requirements and Program Output for SAM.yld
Figure 8-2. The Sediment Yield Input screen
Figure 8.3. Example flow duration data input
Figure 8.4. Example flow hydrograph data input
Input Data Descriptions
Sample Output Data - Cvr-Chpt80143
TABLE 3.2 DISTRIBUTION OF YIELD BY WATER DISCHARGE CLASS INTERVAL
TABLE 1. LIST INPUT DATA
TABLE 3.1 CALCULATED YIELDS
Output Data Description
Plotting
Cvr-Chpt8