The local total enthalpy at a specific point within a fluid flow, denoted as “h0,1,” is a thermodynamic property that describes the total energy per unit mass of a fluid at that point. It takes into account both the internal energy of the fluid and the kinetic energy associated with its motion at that specific […]
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For a calorically perfect gas, the total enthalpy is a thermodynamic property that represents the combination of internal energy, kinetic energy, and potential energy per unit mass of the gas. It is used to describe the energy content of a calorically perfect gas and is especially relevant in fluid dynamics and thermodynamics. Total enthalpy (h0)
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The total enthalpy at any point in a fluid flow, denoted as “h0,” is a thermodynamic property that represents the combination of internal energy, kinetic energy, and potential energy per unit mass of a fluid element. It is used in fluid dynamics and aerodynamics to analyze and understand the behavior of flowing fluids, such as
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The mean molecular kinetic energy is an average value that accounts for the fact that there is a distribution of molecular speeds within a gas due to the Maxwell-Boltzmann distribution. It is calculated as the average kinetic energy of all the molecules in the gas. Mean molecular kinetic energy (KE) in J Boltzmann constant (K)
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Dynamic pressure, often denoted as “q,” is a term used in fluid dynamics and aerodynamics to describe the pressure exerted by a fluid (such as air or a gas) in motion. It represents the kinetic energy per unit volume of the fluid due to its motion and is a fundamental concept in the study of
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The lift-to-drag ratio, often denoted as L/D, is a fundamental parameter in aerodynamics that quantifies the efficiency of an airfoil, wing, or aircraft in generating lift (the upward force) compared to the amount of drag (the resistive force) it produces. It is a critical metric used to assess the performance and efficiency of an aircraft
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The total drag coefficient for a supersonic airfoil represents the sum of two main components of drag: pressure drag (also known as wave drag) represented by cd​ and skin friction drag represented by Cf​. This is a common concept in aerodynamics and is used to evaluate the overall drag characteristics of an airfoil operating at
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Sutherland’s law is a mathematical relationship that describes the temperature variation of the dynamic viscosity (viscosity coefficient) of a gas as a function of temperature. This law is particularly applicable to monatomic and diatomic gases over a limited temperature range. Sutherland’s law is used to estimate the viscosity of a gas at temperatures different from
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The slope of a left-running Mach wave characteristic between points two and three represents the rate of change in the Mach number (M) per unit change in position (typically distance) along the characteristic path from point two to point three. This slope describes how the Mach number varies as one moves along the path of
The slope of a right-running Mach wave characteristic between points one and three refers to the rate at which the Mach number (M) changes as one moves along a characteristic associated with a right-running Mach wave from point one to point three within a flow field. The slope of right running Mach wave characteristic between
