Hydro-environmental tools and support

OTOSHEE

Online tools and online support for solving Hydro-environmental engineering problems.
By Vladyman

Time of concentration

  • Select a time of concentration method
  • Kirpich

    Kirpich

    Length [km]
    Slope [m/m]
    Tc [min]

  • California culvert practice
    Length [km]
    Height difference [m]
    Tc [min]

  • SCS delay Tc
    Length [km]
    Slope [m/m]
    CN
    Tc [min]

  • Federal Aviation Agency
    Length [km]
    Slope [m/m]
    Runoff coefficient
    Tc [min]

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  • Rip rap design

    • Select the element to be protected
    • Pier

      Pier rip rap

      Depth flow [m]
      Placement depth [m]
      Froude number
      D50 [m]

    • Abutment

      Abutment rip rap

      Flow depth [m]
      Velocity [m/s]
      Abutment type K
      Specific gravity rock
      D50 [m]

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  • Weirs

    • Select the weir geometry
    • Rectangular

      Rectangular Weir

      Discahrge coefficient
      Width [m]
      Depth above crest [m]
      Discharge [m3/s]

    • Triangular

      Triangular weir

      Discahrge coefficient
      Angle [degree]
      Depth above crest [m]
      Discharge [m3/s]

    • Gutter

      Triangular Gutter

      Manning
      Cross slope [m/m]
      Longitudinal slope [m/m]
      Width [m]
      Discharge [m3/s]

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  • Pipes

  • Select the calculation
  • Hazen Williams

    Hazen Williams

    Length [m]
    Diameter [mm]
    Flow [cmd]
    Coefficient
    Head loss [m]

  • Minimum diameter

    Minimum diameter

    Flow [cmd]
    Maximum velocity [m/s]
    Minimum diameter [mm]

  • Select the scour type

    • Select scour type
    • Groyne

      Groyne

      Geometry coefficient [1-2]
      Unitary discharge [m2/s]
      Groyne width [m]
      River width [m]
      Depth [m]
      Scour [m]

    • Weirs
      Depth [m]
      Drop [m]
      Unitary discharge [m2/s]
      Scour [m]

    • Pipes
      Diameter [cm]
      Velocity [m/s]
      Depth [m]
      Scour [cm]

    • Federal Aviation Agency
      Length [km]
      Slope [m/m]
      Runoff coefficient
      Tc [min]

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