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2. Drag coefficient - Wikipedia

   en.wikipedia.org/wiki/Drag_coefficient

   Drag coefficients in fluids with Reynolds number approximately 10 4 [1] [2] Shapes are depicted with the same projected frontal area. In fluid dynamics, the drag coefficient (commonly denoted as: , or ) is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment, such as air or water.

3. Drag (physics) - Wikipedia

   en.wikipedia.org/wiki/Drag_(physics)

   In supersonic flow regimes, wave drag is commonly separated into two components, supersonic lift-dependent wave drag and supersonic volume-dependent wave drag. The closed form solution for the minimum wave drag of a body of revolution with a fixed length was found by Sears and Haack, and is known as the Sears-Haack Distribution .

4. Drag equation - Wikipedia

   en.wikipedia.org/wiki/Drag_equation

   is the drag coefficient – a dimensionless coefficient related to the object's geometry and taking into account both skin friction and form drag. If the fluid is a liquid, c d {\displaystyle c_{\rm {d}}} depends on the Reynolds number ; if the fluid is a gas, c d {\displaystyle c_{\rm {d}}} depends on both the Reynolds number and the Mach number .

5. Category:Drag (physics) - Wikipedia

   en.wikipedia.org/wiki/Category:Drag_(physics)

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6. Parasitic drag - Wikipedia

   en.wikipedia.org/wiki/Parasitic_drag

   Parasitic drag, also known as profile drag, [1]: 254 [2]: 256 is a type of aerodynamic drag that acts on any object when the object is moving through a fluid. Parasitic drag is defined as the combination of form drag and skin friction drag .

7. Skin friction drag - Wikipedia

   en.wikipedia.org/wiki/Skin_friction_drag

   Skin friction drag is a type of aerodynamic or hydrodynamic drag, which is resistant force exerted on an object moving in a fluid.Skin friction drag is caused by the viscosity of fluids and is developed from laminar drag to turbulent drag as a fluid moves on the surface of an object.

8. Lift-induced drag - Wikipedia

   en.wikipedia.org/wiki/Lift-induced_drag

   Lift-induced drag, induced drag, vortex drag, or sometimes drag due to lift, in aerodynamics, is an aerodynamic drag force that occurs whenever a moving object redirects the airflow coming at it. This drag force occurs in airplanes due to wings or a lifting body redirecting air to cause lift and also in cars with airfoil wings that redirect air ...

9. D'Alembert's paradox - Wikipedia

   en.wikipedia.org/wiki/D'Alembert's_paradox

   D’Alembert, working on a 1749 Prize Problem of the Berlin Academy on flow drag, concluded: It seems to me that the theory (potential flow), developed in all possible rigor, gives, at least in several cases, a strictly vanishing resistance, a singular paradox which I leave to future Geometers [i.e. mathematicians - the two terms were used ...