RCAIDE.Library.Methods.Powertrain.Propulsors.Electric_Ducted_Fan.design_electric_ducted_fan

design_electric_ducted_fan#

design_electric_ducted_fan(EDF, new_regression_results=False, keep_files=True)[source]#

Compute performance properties of an electrically powered ducted fan, which is driven by an electric machine.

Parameters:
  • EDF (RCAIDE.Library.Components.Propulsors.Electric_Ducted_Fan) –

    Electric ducted fan propulsor component with the following attributes:
    • tagstr

      Identifier for the propulsor

    • electronic_speed_controllerData
      ESC component
      • bus_voltagefloat

        Bus voltage [V]

    • ducted_fanData
      Ducted fan component
      • cruiseData
        Cruise conditions
        • design_torquefloat

          Design torque [N·m]

        • design_angular_velocityfloat

          Design angular velocity [rad/s]

    • motorData
      Electric motor component
      • design_torquefloat

        Design torque [N·m]

      • design_angular_velocityfloat

        Design angular velocity [rad/s]

  • new_regression_results (bool, optional) – Flag to generate new regression results for the ducted fan Default: False

  • keep_files (bool, optional) – Flag to keep temporary files generated during ducted fan design Default: True

Returns:

Results are stored in the EDF object:
  • sealevel_static_thrustfloat

    Sea level static thrust [N]

  • sealevel_static_powerfloat

    Sea level static power [W]

Return type:

None

Notes

This function performs several tasks:
  1. Validates that all required components are defined

  2. Designs the ducted fan using the design_ducted_fan function

  3. Sets the motor design parameters based on the ducted fan requirements

  4. Designs the motor for optimal performance

  5. Computes the motor weight

  6. Calculates the sea level static performance (thrust and power)

The sea level static performance is calculated by:
  • Setting up atmospheric conditions at sea level

  • Creating a low-speed operating state (1% of sea level speed of sound)

  • Setting the throttle to maximum (1.0)

  • Computing the performance at these conditions

Major Assumptions
  • US Standard Atmosphere 1976 is used for atmospheric properties

  • Sea level static conditions are approximated with a very low velocity (1% of speed of sound)

  • Full throttle (throttle = 1.0) is used for sea level static performance