Computational fluid dynamics solve governing equations numerically. Key physics-minded practices:
However, a wing is not a pipe. It is an open system operating in a massive atmosphere. Air is not forced through a narrow, physical throat. Explaining lift solely through a localized Venturi effect fails to explain how planes can fly upside down, or how flat-plate wings (which have no cambered curve) generate lift. 2. The Real Physics of Lift Generation
Understanding Aerodynamics: Arguing from the Real Physics by Doug McLean.
Understanding aerodynamics from a physics-based perspective is crucial for several reasons. First, it allows engineers and scientists to design and develop more efficient and effective vehicles and structures that interact with air. For example, a more accurate understanding of aerodynamics can lead to the development of more efficient aircraft, wind turbines, and cars. understanding aerodynamics arguing from the real physics pdf
For those interested in discussing aerodynamics and the arguments for and against the traditional understanding of the subject, several online communities and forums are available. Some recommended communities and forums include:
Air is pushed down, and pressure drops over the top.
Aerodynamics has a wide range of applications, including: Air is not forced through a narrow, physical throat
This explanation violates basic physics. There is no physical law requiring two adjacent air molecules to meet back up at the trailing edge. In reality, wind tunnel testing proves that the air traveling over the upper surface accelerates so significantly that it reaches the trailing edge long before the air traveling underneath. The Standard Venturi Explanation
For most practical aerodynamic problems, direct numerical solution of these equations is neither feasible nor necessary. Instead, aerodynamics relies on and dimensionless parameters to classify flow regimes and design experiments.
From a pressure/Bernoulli perspective, the wing's curvature and angle of attack force the streamlines of air to curve. This curvature (the "flow turning") creates a pressure field. On the top surface, the curved, accelerated flow results in a region of lower pressure. On the bottom surface, where the flow is slowed and compressed, there is a region of higher pressure. It is the difference in pressure between the top and bottom of the wing that generates the net upward lifting force. This is why simply stating that Bernoulli's principle describes a pressure decrease is incomplete. The real physics is explaining why the flow accelerates and curves, which comes from the airfoil's shape and angle of attack imposing a force on the air, changing its momentum. such as a wing
To truly argue from the real physics, one must engage with the canonical works of the field. Here is a guide to building your own "Understanding Aerodynamics" PDF library:
[ L = \frac12 \rho V^2 S C_L ]
An airfoil is a curved surface, such as a wing, that is designed to produce lift. The shape of the airfoil is such that the air flowing over it must travel faster than the air flowing underneath it, resulting in a pressure difference that creates lift. The design of airfoils and wings is critical in aerodynamics, as it determines the efficiency and stability of flight.