skin friction sentence in Hindi
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- Skin friction arises from the interaction between the fluid and the skin of the body, and is directly related to the area of the surface of the body that is in contact with the fluid.
- The laminar boundary is a very smooth flow, while the turbulent boundary layer contains swirls or " eddies . " The laminar flow creates less skin friction drag than the turbulent flow, but is less stable.
- This would have been proven by long furrows present in ancients seabeds . " Plesiosauromorphs " were not well adapted to catching large fast-moving prey, as their long necks, though seemingly streamlined, caused enormous skin friction.
- Beginning with the AIM-9L in 1977, subsequent versions of Sidewinder have added all-aspect capability, the ability to use the lower heat of air to skin friction on the target aircraft to track from the front and sides.
- Just like any other form of drag, the coefficient of skin friction drag is calculated with various equations and measurements depending on the flow and then added to coefficients of other forms of drag to calculate total drag.
- The analysis by the students found several advantages such as a lower vertical surface area, which aids in stealth; less drag due to skin friction; and a lower weight due to the need for two as opposed to the usual four hydraulic actuators.
- "' Supercavitation "'is the use of cavitation effects to create a bubble of gas inside a liquid large enough to encompass an object travelling through the liquid, greatly reducing the skin friction Chinese and the US Navy are reportedly working on supersonic supercavitating submarines.
- For those actually interested in the topic, there's a good NASA paper, " Topology of Three-Dimensional Separated Flows ", which discusses skin friction lines in detail and references the papers of other researchers . talk ) 21 : 24, 1 September 2012 ( UTC)
- From the body's perspective ( near-field approach ), the drag comes from forces due to pressure distributions over the body surface, symbolized D _ { pr }, and forces due to skin friction, which is a result of viscosity, denoted D _ { f }.
- There is an optimum speed for efficiency because the component of drag resulting from airframe skin friction against the air increases at a square function of air speed, but the drag resulting from generating lift decreases with air speed . ( These are technically called parasitic drag and induced drag, respectively .)
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