RCAIDE.Library.Components.Powertrain.Converters.Ram

Ram#

class Ram(*args, **kwarg)[source]#

Bases: Converter

A ram air compression component model that simulates the compression of incoming air flow.

tag#

Identifier for the ram component. Default is ‘Ram’.

Type:

str

working_fluid#

Container for working fluid properties and conditions. Default is empty Data().

Type:

Data

Notes

The Ram class models the compression of incoming air due to the ram effect in high-speed flight. It calculates:

  • Total pressure rise due to flow deceleration

  • Temperature increase from compression

  • Changes in fluid properties

  • Ram recovery efficiency

  • Compressibility effects

The model assumes:

  • Quasi-one-dimensional flow

  • Adiabatic process (no heat transfer)

  • Perfect gas behavior

  • Steady flow conditions

  • No boundary layer effects

  • No shock waves (unless explicitly modeled)

Theory The ram compression process follows isentropic flow relations for subsonic flow and includes normal shock relations for supersonic flow. The total pressure recovery depends on the flight Mach number and inlet geometry.

Definitions

‘Ram Effect’

Pressure rise due to deceleration of high-speed flow

‘Recovery Factor’

Ratio of actual to ideal pressure rise

‘Working Fluid’

Fluid medium undergoing compression (typically air)

References

[1] Mattingly, J. D., & Boyer, K. M. (2016). Elements of propulsion: Gas

turbines and rockets, second edition Jack D. Mattingly, Keith M. Boyer. American Institute of Aeronautics and Astronautics.

See also

RCAIDE.Library.Components.Component, RCAIDE.Library.Methods.Powertrain.Converters.Ram.append_ram_conditions

append_operating_conditions(segment, energy_conditions, noise_conditions=None)[source]#