vacuum gauge suction lift - translation to ρωσικά
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vacuum gauge suction lift - translation to ρωσικά

TERM USED IN FLUID DYNAMICS
Tdh; Suction head; Suction lift

vacuum gauge suction lift      

строительное дело

вакуумметрическая высота всасывания

vacuum gauge suction lift      
вакуумметрическая высота всасывания
three-dimensional flow         
  • Airflow separating from a wing at a high angle of attack
  • Control volumes of different shapes that have been used in analyzing the momentum balance in the 2D flow around a lifting airfoil. The airfoil is assumed to exert a downward force −L' per unit span on the air, and the proportions in which that force is manifested as momentum fluxes and pressure differences at the outer boundary are indicated for each different shape of control volume.
  • Lift is defined as the component of the [[aerodynamic force]] that is perpendicular to the flow direction, and drag is the component that is parallel to the flow direction.
  • An illustration of the incorrect equal transit-time explanation of airfoil lift.<ref name="nasa_equal_transit"/>
  • streamlines]].
  • Illustration of the distribution of higher-than-ambient pressure on the ground under an airplane in subsonic flight
  • isobars]] of equal pressure along their length. The arrows show the pressure differential from high (red) to low (blue) and hence also the net force which causes the air to accelerate in that direction.
  • Streamlines and streamtubes around an airfoil generating lift. Note the narrower streamtubes above and the wider streamtubes below.
FORCE; AERODYNAMICS TERM
Dynamic lift; Lift force; Lift Force; Useful lift; Lift equation; Aerodynamic lift; Lift (physics); Lift (fluid mechanics); Lift distribution; Equal transit-time fallacy; Equal transit time fallacy; Lifting force; Lift vector; Lift (airplane); Three-dimensional flow; Lift (aerodynamics)

общая лексика

пространственное течение

Ορισμός

vacuum cleaner
also vacuum-cleaner (vacuum cleaners)
A vacuum cleaner or a vacuum is an electric machine which sucks up dust and dirt from carpets.
N-COUNT

Βικιπαίδεια

Total dynamic head

In fluid dynamics, total dynamic head (TDH) is the work to be done by a pump, per unit weight, per unit volume of fluid. TDH is expressed as the total equivalent height that a fluid is to be pumped, taking into account friction losses in the pipe.

T D H = Δ z + Δ ψ ρ g + Δ v 2 2 g + h F {\displaystyle {TDH=\Delta z+\Delta {\frac {\psi }{\rho g}}+\Delta {\frac {v^{2}}{2g}}}+h_{F}}
TDH = Static Lift + Pressure Head + Velocity Head + Friction Loss

where:

Static lift is the difference in elevation between the suction point and the discharge point.
Pressure head is the difference in pressure between the suction point and the discharge point, expressed as an equivalent height of fluid.
Velocity head represents the kinetic energy of the fluid due to its bulk motion.
Friction loss (or head loss) represents energy lost to friction as fluid flows through the pipe.

This equation can be derived from Bernoulli's Equation.

For incompressible liquids such as water, Static lift + Pressure head together equal the difference in fluid surface elevation between the suction basin and the discharge basin.

Μετάφραση του &#39vacuum gauge suction lift&#39 σε Ρωσικά