environmentaltools.processes.hydraulic_radius

environmentaltools.processes.hydraulic_radius(channel_info, type_='rectangular')

Calculate hydraulic properties of open channel cross-sections.

Computes wetted area, wetted perimeter, hydraulic radius, and water surface width for various channel geometries used in open channel flow calculations.

Parameters:

• channel_info (dict) –

  Dictionary with channel geometry parameters:

  • bfloat

    Channel bottom width (m)

  • Additional parameters depending on channel type

• type (str, optional) – Channel cross-section type. Options: ‘rectangular’, ‘trapezoidal’, ‘triangular’, ‘circular’, ‘parabolic’. Default: ‘rectangular’

Returns:

DataFrame with computed hydraulic properties: - wet_area : Wetted cross-sectional area (m²) - wet_perimeter : Wetted perimeter (m) - rh : Hydraulic radius (m) - water_mirror : Water surface width (m)

Return type:

pd.DataFrame

Raises:

ValueError – If channel type is not implemented

Notes

Hydraulic radius is defined as: Rh = A / P where A is the wetted area and P is the wetted perimeter. This parameter is fundamental for Manning’s equation and other open channel flow formulas.

Warning

This function has a bug: variable ‘y’ (water depth) is not defined as parameter