Stagnation pressure is the sum of the total pressure and dynamic pressure.

Stagnation pressure is always equal with the dynamic pressure.

Stagnation pressure is the pressure what we would get if we measure the pressure in the mouth of the pitot static tube (stagnation point), where the fluid speed gets zero.

Yes on every point of the streamline which goes through the wind turbine. Even between two points, where the first point is before the wind turbine and the second point placed after the wind turbine.

Not at all. Bernoulli equation can not applied in the case of wind turbine.

Total pressure

Hydrostatic pressure

Stagnation pressure

Dynamic pressure

Relates the motion of the fluid (i.e. its velocity) to its pressure

Is a complex mathematical form (with differentials and integrals)

Bernoulli equation allows to calculate loads (for example lift over a wing) due to fluid motion

To measure the velocity of a fluid from a pressure measurement device (Pitot tube)

Stagnation pressure it is the summation of static and dynamic pressure.

Relative pressure is always the difference between the stagnation pressure and the static pressure.

Static pressure is the pressure, which one would feel when moving along with the particles.

Dynamic pressure is the pressure associated with the velocity of the fluid.

Traces made by a dye or smoke injected at a given point in the flowfield.

A line, to which the velocity vectors are tangent at all points along itself.

Smoke injected in wind tunnel or ink injected in water.

Euler equations for inviscid flow (friction forces due to viscosity are neglected) 

Euler equations calculating with acceleration of the flow.

Euler equations can describe also unsteady flow

An example for streamline: such as recording the positions of a floating cork on the surface of a river.

A straight line, do which the velocity vectors are tangent at all points along itself.

A curve, do which the velocity vectors are tangent at all points along itself.