"A stagnation point of a body in a moving airstream is a point where: the velocity of the relative airflow is zero and the surface pressure is higher than the ambient atmospheric pressure"
Could you please tell me why surface pressure is higher and not equal to ambient atmospheric pressure. As far as I know (for incompressible flows) the total pressure of still air is composed of 100% static pressure with 0 % dynamic pressure if there is no movement/velocity involved. As soon as there is velocity given to a body of air, static pressure starts drops, and total pressure is now also composed of dynamic pressure. The sum of these pressures, TP, is always a constant. Also, since at the stagnation point where local airflow flow velocity is 0, static pressure is highest, meaning no dynamic pressure, shouldn't this pressure be then equal to ambient air pressure of the nearby parcel of air that is unaffected by the wing's passage through it? How could the surface pressure at the stagnation point be possible higher than ambient (total pressure, which would be composed of 100% static and 0% dynamic as I understand it)when both sums have to be a constant anyway. Am i possibly:
1)using the terms static pressure and stagnation pressure interchangeably, when they actually mean different things
2)worrying about a question that was written wrongly to begin with
3)not understanding something else that I have failed to mention or learn?
Your advice is well appreciated;