Drag (physics) - Wikipedia
In fluid dynamics, drag, sometimes referred to as fluid resistance, is a force acting opposite to the relative motion of any object moving with respect to a surrounding fluid. [1] . This can exist between two fluid layers, two solid surfaces, or between a fluid and a solid surface.
5.2: Drag Forces - Physics LibreTexts
Definition: DRAG FORCE. Drag Force \(F_D\) is found to be proportional to the square of the speed of the object. Mathematically \[F_D\propto v^2 \] \[F_D = \dfrac{1}{2} C_{\rho} Av^2, \] where \(C\) is the drag coefficient \(A\) is the area of the object facing the fluid, and \(\rho\) is the density of the fluid.
Drag Force: Definition, Formula, and Examples - Science Facts
2023年2月2日 · The resistance offered by a fluid, like air and water, is called the drag force or drag when an object moves through it. It acts in a direction opposite to the object’s motion. It is generated by the relative velocity between the solid object and the fluid.
What is Drag? | Glenn Research Center | NASA
2022年7月21日 · Drag is the aerodynamic force that opposes an aircraft’s motion through the air. Drag is generated by every part of the airplane (even the engines!). How is drag generated? Drag is a mechanical force. It is generated by the interaction and contact of a …
Drag Force - Definition, Principle, Discovery, Formula, FAQs - BYJU'S
When a solid body interacts with a fluid (liquid or gas), a drag force is produced on the solid body. Drag forces are not created by any force fields. In order to experience a drag force, an object has to come into physical contact with the fluid medium.
8.6: Drag Forces in Fluids - Physics LibreTexts
2022年7月20日 · When a solid object moves through a fluid it will experience a resistive force, called the drag force, opposing its motion. The fluid may be a liquid or a gas. This force is a very complicated force that depends on both the properties of the object and the properties of the fluid.
Drag Forces | Physics - Lumen Learning
Unlike simple friction, the drag force is proportional to some function of the velocity of the object in that fluid. This functionality is complicated and depends upon the shape of the object, its size, its velocity, and the fluid it is in.
6.7: Drag Force and Terminal Speed - Physics LibreTexts
Definition: Drag Force. Drag force \(F_D\) is proportional to the square of the speed of the object. Mathematically, \[F_{D} = \frac{1}{2} C \rho A v^{2},\] where \(C\) is the drag coefficient, \(A\) is the area of the object facing the fluid, and \(\rho\) is the density of the fluid.
Drag | Aerodynamics, Air Resistance & Turbulence | Britannica
2024年11月15日 · Drag, force exerted by a fluid stream on any obstacle in its path or felt by an object moving through a fluid. Its magnitude and how it may be reduced are important to designers of moving vehicles, ships, suspension bridges, cooling towers, and other structures.
Drag Force: Factors, Types and Real-World Applications
Feel the force of drag! Learn about the factors that affect it, its importance, types, and applications in daily life, medicine, and engineering, plus methods for measuring and reducing drag force. Think about a car that is in motion or a car driving on the freeway.