surface-friction drag

См. также в других словарях:

• skin friction/surface friction drag — Drag caused by the unevenness in the skin of a body. The layers of air near the surface are retarded, and the speed of the airflow increases as the distance from the skin increases. To reduce the skin friction, the surface should be smoothened to …   Aviation dictionary

• skin friction drag — Aeron. aerodynamic resistance or drag due to the contact of moving air with the surface of an airplane, a glider, etc. * * * …   Universalium

• skin friction drag — Aeron. aerodynamic resistance or drag due to the contact of moving air with the surface of an airplane, a glider, etc …   Useful english dictionary

• skin friction drag — noun aerodynamic resistance due to the tangential forces of moving air on the surface of a body …  

• Drag (physics) — Shape and flow Form drag Skin friction 0% 100% 10% 90% …   Wikipedia

• drag — /drag/, v., dragged, dragging, n., adj. v.t. 1. to draw with force, effort, or difficulty; pull heavily or slowly along; haul; trail: They dragged the carpet out of the house. 2. to search with a drag, grapnel, or the like: They dragged the lake… …   Universalium

• Friction — For other uses, see Friction (disambiguation). Classical mechanics …   Wikipedia

• drag — I. noun Etymology: Middle English dragge, probably from Middle Low German draggen grapnel; akin to Old English dragan to draw more at draw Date: 14th century 1. something used to drag with; especially a device for dragging under water to detect… …   New Collegiate Dictionary

• Drag coefficient — In fluid dynamics, the drag coefficient (commonly denoted as: cd, cx or cw) 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. It is used in the drag equation,… …   Wikipedia

• drag — i. That component of aerodynamic forces acting on the wing or the airfoil section, which is parallel and opposite to the relative airflow. The sources of drag are the pressure distribution patterns over the airfoil, called induced drag; the skin… …   Aviation dictionary

• Drag crisis — In fluid dynamics, drag crisis is a phenomenon in which drag coefficient drops off suddenly as Reynolds number increases. This has been well studied for round bodies like spheres and cylinders. The drag coefficient of a sphere will change rapidly …   Wikipedia