Drag (physics) - Wikipedia, the free encyclopedia
In fluid dynamics, drag (sometimes called air resistance or fluid resistance ) refers to forces that oppose the relative motion of an object through a fluid (a liquid or gas). Drag forces act in...
en.wikipedia.org/wiki/Drag_(physics)
Drag coefficient - Wikipedia, the free encyclopedia
In fluid dynamics, the drag coefficient (commonly denoted as C d , C x or C w ) is a dimensionless quantity which is used to quantify the drag or resistance of an object in a fluid en...
en.wikipedia.org/wiki/Drag_coefficient
Aerodynamic drag - Wikipedia, the free encyclopedia
Aerodynamic drag is the retarding force that acts on moving aerodynamic body in the direction of the freestream flow. From the body's perspective (near-field approach), the drag comes from forces due...
en.wikipedia.org/wiki/Aerodynamic_drag
Just as airplane engines are needed to overcome the drag of the plane, a racecar engine has to overcome the drag of the car, including the wings. ... For real body shapes, air at standard conditions, V in mph, and drag in pounds of force, this equation becomes:
www.insideracingtechnology.com/tech102drag.htm www.insideracingtechnology.com/tech102drag.htm
The force on an object that resists its motion through a fluid is called drag. When the fluid is a gas like air, it is called aerodynamic drag (or air resistance). When the fluid is a liquid like water it is called hydrodynamic drag (but never "water resistance").
physics.info/drag/ physics.info/drag/
Aerodynamic drag consists of two forces: air pressure drag and direct friction (also known as surface friction or skin friction). A blunt, irregular object disturbs the air flowing around it, forcing the air to separate from the object's surface.
www.exploratorium.edu/cycling/aerodynamics1.html www.exploratorium.edu/cycling/aerodynamics1.html
Any object moving through the air will encounter a force opposing the object's motion due to friction with the air. This retarding force is called a DRAG. More generally, the object can be moving through ANY fluid, not just air. ... Aerodynamic Lift; Friction - Air;
www.exploratorium.edu/xref/phenomena/aerodynamic_drag.h... www.exploratorium.edu/xref/phenomena/aerodynamic_drag.html
Notice that the area (A) given in the drag equation is given as a reference area. The drag depends directly on the size of the body. Since we are dealing with aerodynamic forces, the dependence can be characterized by some area.
www.grc.nasa.gov/WWW/K-12/airplane/drageq.html www.grc.nasa.gov/WWW/K-12/airplane/drageq.html
Mathematically, the summation is indicated by the Greek letter sigma ( ) The net aerodynamic force F is equal to the sum of the product of the pressure p times the area A in the normal direction. ... Definitions of Lift and Drag...
www.grc.nasa.gov/WWW/K-12/airplane/presar.html
All objects have a certain amount of aerodynamic drag. In this article, I will be looking at how drag affects a vehicle's ability to accelerate, and the top speed. I will not be covering the actual study of automotive aerodynamics in detail.
craig.backfire.ca/pages/autos/drag craig.backfire.ca/pages/autos/drag