Author name: Gurupriya Dey Sarkar

The propulsive efficiency (ηp) is typically defined for air-breathing engines like turbofan or turboprop engines, which are used in aircraft. Turboshaft engines, on the other hand, are typically used in helicopters and rotorcraft and have different characteristics. These engines are used to turn a rotor to generate lift, and their efficiency is generally measured differently […]

The propulsive efficiency (ηp) of a high-bypass ratio (HBR) turbofan engine is a measure of how effectively the engine converts the energy from the combustion of fuel into useful thrust for propulsion. High-bypass ratio turbofan engines are known for their efficiency due to the significant contribution of bypass air to thrust. In SI units, the

The propulsive efficiency (ηp) of a turboprop engine is a measure of how effectively the engine converts the energy from the combustion of fuel into useful thrust for propulsion. Turboprop engines are used in aircraft where a combination of jet propulsion and propeller-driven thrust is desired. In SI units, the formula for calculating the propulsive

The propulsive efficiency (ηp) of a turbofan engine is a measure of how effectively the engine converts the energy from the combustion of fuel into useful thrust for propulsion. Turbofan engines are more efficient than turbojet engines because they harness the energy from both the jet exhaust and the bypass air. In SI units, the

The propulsive efficiency (ηp) of a turbojet engine is a measure of how effectively the engine converts the energy from the combustion of fuel into useful thrust for propulsion. In SI units, the formula for calculating the propulsive efficiency is as follows: ηp = (2 * V * (Vj – V)) / (g * (Vj^2))

The thrust of a solid propellant rocket in vacuum conditions is calculated in a similar manner to other types of rockets. It depends on the rate of expulsion of the mass of propellant and the effective exhaust velocity. However, solid propellant rockets have some unique characteristics that affect the calculation. Here’s how you can calculate

The thrust of a rocket in a vacuum, also known as vacuum thrust, is the force generated by the rocket engine when operating in the absence of an atmosphere. In vacuum conditions, there is no air to push against, so the rocket relies solely on the expulsion of mass to generate thrust, following Newton’s third

The specific heat capacity at constant volume (Cv) for an ideal gas is a thermodynamic property that measures the amount of heat energy required to raise the temperature of a given amount of gas while keeping the volume constant. It is a fundamental parameter in thermodynamics and is typically expressed in units of joules per

The specific heat capacity at constant pressure, often denoted as Cp, is a thermodynamic property that measures the amount of heat energy required to raise the temperature of a substance while keeping the pressure constant. It quantifies how a substance’s temperature changes when heat is added at a constant pressure. The formula for specific heat

The effective exhaust velocity (Ve) for a rocket engine is a crucial parameter that characterizes the engine’s performance. It represents the speed at which the exhaust gases exit the rocket nozzle. Ve is typically expressed in units of meters per second (m/s) or feet per second (ft/s). The effective exhaust velocity can be calculated using