aerodynamics - What is the difference between flow separation and ...
Jun 17, 2020 · Flow separation can happen without stall, and it will reduce the benefit gained from a higher angle of attack in proportion to the extent to which the flow is separated, but stall cannot …
aerodynamics - Why does flow separation cause a loss of lift ...
Aug 19, 2024 · To illustrate the effect of flow separation on lift, consider what the flow outside of the boundary layer "sees" when flowing around the wing. At low angle of attack flow is attached, the …
Why does airflow separate from the wing during stall?
Jul 21, 2019 · What causes the airflow separation from the airplane wing, that triggers a stall? To be more precise, what is the detailed explanation of the physics for why flow separation occurs at …
Why does flow separation cause an increase in pressure drag?
Aug 29, 2024 · Let's use a cylinder as an example: Imagine in this picture the flow was attached. According to the answer I linked, the pressure behind the object will be lower when the flow is …
What is the effect of airflow speed on separation?
Oct 6, 2019 · The boundary layer separation is due to flow deceleration as it moves away from the leading edge and an adverse pressure gradient appears (potential flow theory). The lower energy …
What causes the adverse pressure gradient that leads to flow separation?
2 When reading about flow separation I generally see a diagram like this: imp source: Wikimedia commons This shows that the boundary layer slows as it passes over the wing, eventually creating …
How to determine if flow transitions or separates from a Cp plot?
Specifically, what features on the plot do I look out for that can tell me if flow transitions or separates (e.g. inflection points, plateaus, etc) I know that a strong adverse pressure gradient causes …
aerodynamics - What is the effect of suction surface pressure ...
Oct 20, 2024 · When separation of the turbulent boundary layer occurs, the airfoil is said to stall. In this region of pressure recovery, the upwardly concave portion of the velocity profile promotes turbulent …
airfoil - What is the effect of flow separation on lift, pressure ...
Aug 26, 2017 · Separation thickens the boundary layer, substantially altering the shape around which the outer flow streams. The altered airfoil shape causes a reduction in the effective angle of attack, …
Where is the spanwise flow? How does the span wise flow point the air ...
May 31, 2017 · Before flow separation that hardly happens, only in the boundary layer, as @Peter Kämpf explains. At low angles of attack, for understanding purposes, it is probably best to consider …