vulcan::propulsion::electric Namespace Reference

Functions
template<typename Scalar>
Scalar	thrust_from_power (const Scalar &power, const Scalar &Ve, const Scalar &efficiency)
	Calculates thrust for power-limited propulsion.
template<typename Scalar>
Scalar	mass_flow_from_power (const Scalar &power, const Scalar &Ve, const Scalar &efficiency)
	Calculates mass flow rate for power-limited propulsion.
template<typename Scalar>
Scalar	characteristic_velocity (const Scalar &power, const Scalar &efficiency, const Scalar &mdot)
	Calculates characteristic velocity (exhaust velocity) from power and mass flow.

Function Documentation

characteristic_velocity()

template<typename Scalar>

Scalar vulcan::propulsion::electric::characteristic_velocity	(	const Scalar &	power,
		const Scalar &	efficiency,
		const Scalar &	mdot )

Calculates characteristic velocity (exhaust velocity) from power and mass flow.

c* = sqrt(2 * efficiency * P / mdot)

Template Parameters

Scalar

Variable type

Parameters

power	Input power [W]
efficiency	Thruster efficiency (0 to 1)
mdot	Mass flow rate [kg/s]

Returns

Characteristic velocity (Exhaust Velocity) [m/s]

mass_flow_from_power()

template<typename Scalar>

Scalar vulcan::propulsion::electric::mass_flow_from_power	(	const Scalar &	power,
		const Scalar &	Ve,
		const Scalar &	efficiency )

Calculates mass flow rate for power-limited propulsion.

mdot = 2 * P * efficiency / Ve^2

Template Parameters

Scalar

Variable type

Parameters

power	Input power [W]
Ve	Effective exhaust velocity [m/s]
efficiency	Thruster efficiency (0 to 1)

Returns

Mass flow rate [kg/s]

thrust_from_power()

template<typename Scalar>

Scalar vulcan::propulsion::electric::thrust_from_power	(	const Scalar &	power,
		const Scalar &	Ve,
		const Scalar &	efficiency )

Calculates thrust for power-limited propulsion.

Derived from P = F * Ve / (2 * efficiency) => F = 2 * efficiency * P / Ve

Template Parameters

Scalar

Variable type

Parameters

power	Input power [W]
Ve	Effective exhaust velocity [m/s]
efficiency	Thruster efficiency (0 to 1)

Returns

Thrust [N]