stagnation pressure


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stagnation pressure

[stag′nā·shən ‚presh·ər]
(fluid mechanics)

stagnation pressure

stagnation pressureclick for a larger image
The pressure at the stagnation point. It is the same as the total head or pitot pressure (i.e., the sum of the local atmospheric pressure and the dynamic pressure).
References in periodicals archive ?
The wake of the Grand Prix car is dominated by a large region of stagnation pressure deficit coupled with the counter-rotating vortex pair from the rear wing.
The reason for this is that besides reducing the stagnation pressure on the trailing vehicle, the wake of the leading vehicle also reduces the suction pressure on the curved frontal surfaces of the trailing vehicle.
The static pressure rise is achieved through the ramming effect of the air; the increase in Mach number results in increase in static pressure and static temperature with the loss of stagnation pressure due to the presence of shock waves.
All the reader needs to understand is that stagnation pressure increases proportional to the square of any velocity increase.
The effect of flow deflection is observed in term of stagnation pressure region located somewhere around 45 degrees from the flow direction and in is good agreement with the present experimental results and RMS, K-wSST, DES (SST-LES), SST-Cas, K-epsilon and LES results obtained from previous study conducted by Afgan [15].
Unfortunately as the fan pressure ratio and fan speed are reduced, the fan design becomes more sensitive to inlet flow distortion and installation stagnation pressure losses.
The stagnation pressure coefficient and drag coefficient also show a complex dependence on the power law index and Reynolds number.
This means that the dynamic equilibrium is re-established when the stagnation pressure from inside the tower equals the one from outside, at the exit level,
The stagnation pressure and temperature are computed using the formulas
As the raw exhaust flow accelerates through the contraction in the flow meter, the stagnation pressure of the flow is reduced.
Offsets create a condition deflecting the flow into a joint or crack and, in turn, create stagnation pressure and uplift forces.
The stagnation pressure of hypersonic flight is exponentially dependent on Mach number.