Who discovered the relationship between pressure and fluids in motion that aided airfoil lift theory?

Who discovered the relationship between pressure and fluids in motion that aided airfoil lift theory?

• A. Isaac Newton
• B. Leonhard Euler
• C. Daniel Bernoulli
• D. Galileo Galilei

Answer: (C)

Pressure-velocity relationship in a moving fluid is described by Bernoulli's principle, which comes from conserving energy in steady, incompressible flow. It states that as the fluid speeds up, its pressure drops. This idea helps explain why air moving faster over the curved upper surface of a wing reduces pressure there relative to the slower air below, creating lift. Daniel Bernoulli is the scientist who formulated this principle, tying together speed and pressure in fluids and providing a fundamental explanation for lift in aerodynamics. While Newton laid the groundwork of forces and motion, Galileo studied motion in general, and Euler contributed to fluid dynamics equations, the specific discovery connecting pressure and fluid speed that aids lift theory is Bernoulli’s.

Pressure-velocity relationship in a moving fluid is described by Bernoulli's principle, which comes from conserving energy in steady, incompressible flow. It states that as the fluid speeds up, its pressure drops. This idea helps explain why air moving faster over the curved upper surface of a wing reduces pressure there relative to the slower air below, creating lift.

Daniel Bernoulli is the scientist who formulated this principle, tying together speed and pressure in fluids and providing a fundamental explanation for lift in aerodynamics. While Newton laid the groundwork of forces and motion, Galileo studied motion in general, and Euler contributed to fluid dynamics equations, the specific discovery connecting pressure and fluid speed that aids lift theory is Bernoulli’s.