Author name: Bhagiya Prasad

Mass flux, also known as mass flow flux or mass transfer flux, is a measure of the amount of mass passing through a unit area per unit of time. It is used to describe the rate at which mass is transferred across a specified surface or interface. mass flux  is the mass flow rate per […]

Mass flow refers to the movement or transfer of mass (matter) through a specific point or area within a given period of time.  ṁ is the mass flow rate (measured in kg/s or other mass units per unit of time). ρ is the density of the fluid (measured in kg/m³). Vn is the velocity of

The power required for stable flight refers to the amount of power that an aircraft’s propulsion system must generate to maintain a steady and level flight at a constant speed. It is the power needed to overcome the total drag force acting on the aircraft. For steady level flight, the lift force is equal to

The power required for unsteady flight depends on the specific flight maneuver being performed, the changing flight conditions, and the aerodynamic forces acting on the aircraft. Unlike steady level flight, unsteady flight involves changes in velocity, acceleration, and orientation, which make the power required calculation more complex.  Preq is the power required for unsteady flight

Specific Heat Ratio is defined as the ratio of the specific heat at constant pressure (Cp) to the specific heat at constant volume (Cv) for a given substance.  γ (gamma) = Specific heat ratio-dimensionless Cp = Specific heat at constant pressure in J/(kg·K)  Cv = Specific heat at constant volume in J/(kg·K) 

The wave drag coefficient (Cw) is a dimensionless quantity used in aerodynamics and hydrodynamics to describe the contribution of wave drag to the total drag experienced by an object moving through a fluid (usually air or water) at high speeds. Wave drag is a significant form of drag that occurs when an object’s speed approaches

The Froude number (Fr) is a dimensionless quantity used in fluid mechanics to describe the behavior of a fluid flow around an object or within a channel. The Froude number is defined as the ratio of the flow velocity (V) to the square root of the product of the gravitational acceleration (g) and a characteristic

Ideal gas equation or perfect gas equation represents the relationship between the pressure (p), density (𝜌), temperature (T), and the gas constant (R) for an ideal gas.  p: Pressure of the gas in N/m^2. 𝜌: Density of the gas in kg/m³. R: The specific gas constant for the particular gas being considered in J/(kg·K) T:

Buoyancy force is the upward force exerted on an object when it is immersed or partially submerged in a fluid (liquid or gas). It is a result of the pressure difference between the top and bottom of the submerged object.  𝜌 (rho) is the density of the fluid (in kg/m³) 𝜈 is the volume of the

The Prandtl number is a dimensionless quantity used in fluid mechanics and heat transfer to describe the ratio of momentum diffusivity to thermal diffusivity in a fluid.  Pr is the Prandtl number, μ∞ is the dynamic viscosity of the fluid at a reference temperature, cp is the specific heat at constant pressure of the fluid