6 Input Requirements and
Program Output for SAM.hyd
Purpose
SAM.hyd has four main calculation options, with variations within each of
these. While some of the input and output are consistent for all options, each
calculation option also has specific input data requirements as well as varying
output. This chapter will address these specific input data requirements and
present an overview of associated output, option by option.
General
SAM.hyd expects an input file designated as x.hi, with no embedded spaces.
SAM.hyd will write a corresponding file x.ho, which is the hydraulic
calculations output file. All SAM.hyd options except the stable channel
calculations also create an x.si file, which is an input file to SAM.sed.
SAM.hyd's four calculation options are briefly described below. The first
option allows for determination of the unknown variable in the Manning
equation, i.e., depth, bottom width in a trapezoidal channel, slope, roughness or
discharge. Detailed discussions of the various input requirements follow.
Normal Depth Calculations and Variations offers the user the option of
calculating normal depth, bottom width, discharge, energy slope,
hydraulic roughness, and flow distribution. Four compositing
methods are available. Riprap can be added to most of these
calculations.
Stable Channel Dimensions (Copeland Method) will calculate the dependent
design variables of width, slope and depth from the independent
variables of discharge, sediment inflow and bed material
composititon using the analytical approach known as the
Copeland Method.
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Chapter 6
Input Requirements and Program Output for SAM.hyd
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