Density is a fundamental physical property that quantifies the mass of a substance per unit volume. It is a measure of how much matter (mass) is packed within a given amount of space (volume). The below equation is the Ideal gas law for the density (ρ) of a gas. The ideal gas law is a […]
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In aerodynamics, the moment about the leading edge (M’LE) is a critical parameter used to describe the pitching moment characteristics of an airfoil or wing. The pitching moment is the rotational moment or torque that tends to make the aircraft or airfoil pitch around its center of gravity. M’LE: Moment about the leading edge (pitching
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In flight mechanics, “propeller efficiency” refers to the measure of how effectively a propeller converts the engine power into useful thrust to propel an aircraft forward. It quantifies the efficiency of the propeller in converting rotational mechanical power from the engine into forward motion. T = Thrust produced by the propeller (force in Newtons or
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In flight mechanics, the “specific fuel consumption” (SFC) of a turbofan engine refers to the rate at which the engine consumes fuel to produce a certain amount of thrust or power. It is a critical parameter used to evaluate the efficiency and fuel economy of a turbofan engine. Specific fuel consumption is typically expressed as
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Density, in the context of fluid dynamics and buoyancy, refers to the mass of a fluid per unit volume. It is a fundamental property of a fluid that quantifies how much mass is contained within a given volume of the substance. B: Buoyancy force acting on an object submerged or floating in a fluid (Newtons,
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Brake Specific Fuel Consumption (BSFC) is a key performance parameter used in flight mechanics and aerospace engineering to measure the fuel efficiency of an aircraft’s engine. It is defined as the amount of fuel consumed by the engine per unit of thrust produced or power delivered. BSFC (g/kW·h) = (Fuel Flow Rate in grams per
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A U-tube manometer is a simple and common device used to measure pressure differences between two points in a fluid system. It consists of a U-shaped glass tube filled with a liquid (often mercury or water) and open at both ends. One end of the U-tube is connected to the point where the pressure is
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The maximum coefficient of lift (CLmax) is the highest or peak value of the coefficient of lift (CL) that an aerodynamic object, such as an airfoil or wing, can generate under specific conditions. It represents the maximum lift force that the object can produce relative to its properties and the flow conditions. CLmax is achieved
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Specific Fuel Consumption (SFC) in flight mechanics is a measure of the fuel efficiency of an aircraft’s engine. It represents the rate at which fuel is consumed by the engine to produce a specific amount of thrust or power. Using Thrust (SFC in g/kN·h): SFC (g/kN·h) = (Fuel Flow Rate in grams per hour) /
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In flight mechanics and aircraft propulsion, the term “power stroke” is not commonly used to describe the fuel consumption process. Instead, fuel consumption is typically analyzed over the entire operation of the engine rather than isolated power strokes. The mass of fuel taken in power stroke =Vs*(density/air fuel ratio AFR) Vs: Swept volume Density: Density
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