the part that "provided no energy is added or subtracted from the airstream" does shed light on the light on the topic now, and I wish that was included in the book to begin with. Just a few more questions about this however:
Does this mean that the Total P=Static P+Dynamic P formula now mean that the T. pressure being a constant only really applies to an air mass with Static or Dynamic pressure fluctuations only caused by the wind/ breeze blowing? As soon as an airplane passes thru such an air mass, it blows everything out of the water in terms of validity/simplicity?
Also, what happens to the value of total pressure in other areas of the wing, for example the low pressure region responsible for lift? Does this value also exceed ambient pressure because we are adding energy to the airflow, or does airflow here behave more like in the above said equation since the airflow velocity does not reach zero like at the LE stagnation point?
My question being rephrased to ask that: does the Total
Pr. of 30 PSI in our hypothetical example then, reach such a value higher than ambient, only in the region of the stagnation point because of the unique nature of its airflow, whereas at any other points along the wings, the variable constituents of static and dynamic pressure are always a constant (and equal to ambient pressure) but never higher?
Thanks for the clarification