Open Channel Geometry
Hydraulic geometry section properties for standard open channel cross-sections — rectangular, trapezoidal, triangular, parabolic, and circular (partial flow y/D = 0.05–1.0). Provides symbolic formulas and pre-computed normalized coefficients for area (A/D²), wetted perimeter (P/D), hydraulic radius (R/D), and top width (T/D) as functions of depth ratio.
Attributes
side_slope_zdimensionless
depth_ratio_y_over_Ddimensionless
area_formula
wetted_perimeter_formula
hydraulic_radius_formula
top_width_formula
hydraulic_depth_formula
section_factor_formula
area_normalizeddimensionless
wetted_perimeter_normalizeddimensionless
hydraulic_radius_normalizeddimensionless
top_width_normalizeddimensionless
critical_depth_formula
normal_depth_note
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