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Stagnation pressure information


In fluid dynamics, stagnation pressure is the static pressure at a stagnation point in a fluid flow.[1] At a stagnation point the fluid velocity is zero. In an incompressible flow, stagnation pressure is equal to the sum of the free-stream static pressure and the free-stream dynamic pressure.[2]

Stagnation pressure is sometimes referred to as pitot pressure because the two pressures are numerically equal.

  1. ^ Clancy, L.J., Aerodynamics, Section 3.5
  2. ^ Stagnation Pressure at Eric Weisstein's World of Physics (Wolfram Research)

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Stagnation pressure

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In fluid dynamics, stagnation pressure is the static pressure at a stagnation point in a fluid flow. At a stagnation point the fluid velocity is zero...

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Stagnation point

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total pressure.: § 3.5  (In compressible flows, stagnation pressure is also equal to total pressure providing the fluid entering the stagnation point...

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Pitot tube

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stagnation pressure of the fluid, also known as the total pressure or (particularly in aviation) the pitot pressure. The measured stagnation pressure...

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Dynamic pressure

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a stagnation point the dynamic pressure is equal to the difference between the stagnation pressure and the static pressure, so the dynamic pressure in...

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Pressure

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a lower static pressure, it may have a higher stagnation pressure when forced to a standstill. Static pressure and stagnation pressure are related by:...

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Pressure coefficient

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pressure is the same as the freestream pressure. C p {\displaystyle C_{p}} of one corresponds to the stagnation pressure and indicates a stagnation point...

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Overall pressure ratio

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aeronautical engineering, overall pressure ratio, or overall compression ratio, is the ratio of the stagnation pressure as measured at the front and rear...

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Stagnation temperature

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thermodynamics and fluid mechanics, stagnation temperature is the temperature at a stagnation point in a fluid flow. At a stagnation point, the speed of the fluid...

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Isentropic nozzle flow

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less than the isentropic stagnation pressure. For this reason the term "total pressure" (meaning isentropic stagnation pressure) has particular meaning...

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Stagnation enthalpy

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and fluid mechanics, the stagnation enthalpy of a fluid is the static enthalpy of the fluid at a stagnation point. The stagnation enthalpy is also called...

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Impact pressure

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impact pressure (dynamic pressure) is the difference between total pressure (also known as pitot pressure or stagnation pressure) and static pressure. In...

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Static pressure

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choose to use static pressure in some situations. Pascal's law Stagnation pressure Standard conditions for temperature and pressure Clancy, L.J., Aerodynamics...

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Thermodynamic relations across normal shocks

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"Normal shocks" are a fundamental type of shock wave. The waves, which are perpendicular to the flow, are called "normal" shocks. Normal shocks only happen...

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Pitot pressure

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subsonic flow, pitot pressure is equal to the stagnation pressure (or total pressure) of the flow, and hence the term pitot pressure is often used interchangeably...

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Drag coefficient

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it shows equal pressure across the surface. In a real flat plate, the fluid must turn around the sides, and full stagnation pressure is found only at...

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Pressure measurement

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dynamic pressures; this measurement is called the total pressure or stagnation pressure. Since dynamic pressure is referenced to static pressure, it is...

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Mach number

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system (EFIS) can display Mach number derived from stagnation pressure (pitot tube) and static pressure. When the speed of sound is known, the Mach number...

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Kiel probe

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A Kiel probe is a device for measuring stagnation pressure or stagnation temperature in fluid dynamics. It is a variation of a Pitot probe where the inlet...

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Hypersonic speed

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expressed as total enthalpy (MJ/kg), total pressure (kPa-MPa), stagnation pressure (kPa-MPa), stagnation temperature (K), or flow velocity (km/s).[citation...

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Position error

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associated with stagnation pressure. The pitot tube supplies pressure to the airspeed indicator. Pitot pressure is equal to stagnation pressure providing the...

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Speed of sound

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Aircraft flight instruments need to operate this way because the stagnation pressure sensed by a Pitot tube is dependent on altitude as well as speed...

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Fluid dynamics

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name—a stagnation point. The static pressure at the stagnation point is of special significance and is given its own name—stagnation pressure. In incompressible...

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Rayleigh flow

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Therefore, unlike Fanno flow, the stagnation temperature is a variable. The heat addition causes a decrease in stagnation pressure, which is known as the Rayleigh...

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Afterburner

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effective afterburner fuel flow), but a decrease in afterburner exit stagnation pressure (owing to a fundamental loss due to heating plus friction and turbulence...

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Choked flow

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velocity upstream, that is pressure at the critical section must be essentially the same or close to the stagnation pressure upstream P 0 ≈ p {\displaystyle...

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Water flow test

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pressures, the static pressure, the stagnation pressure, and the residual pressure, along with a specified design pressure of 20psi taken from the American...

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Compressor characteristic

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{\displaystyle p_{02}} = stagnation pressure at compressor inlet and outlet T 01 {\displaystyle T_{01}} and T 02 {\displaystyle T_{02}} = stagnation temperature at...

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