• 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...
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  • Thumbnail for Parasitic drag
    the object is moving through a fluid. Parasitic drag is a combination of form drag and skin friction drag.: 641–642 : 19  It affects all objects regardless...
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  • components including viscous pressure drag (form drag), and drag due to surface roughness (skin friction drag). Additionally, the presence of multiple...
    39 KB (5,591 words) - 03:49, 30 October 2024
  • Thumbnail for Lift-to-drag ratio
    equivalent skin-friction method. For a well designed aircraft, zero-lift drag (or parasite drag) is mostly made up of skin friction drag plus a small...
    16 KB (1,826 words) - 00:47, 20 November 2024
  • Thumbnail for Supercavitation
    Supercavitation is the use of a cavitation bubble to reduce skin friction drag on a submerged object and enable high speeds. Applications include torpedoes...
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  • Thumbnail for Drag coefficient
    dynamic drag: skin friction and form drag. The drag coefficient of a lifting airfoil or hydrofoil also includes the effects of lift-induced drag. The drag coefficient...
    21 KB (2,716 words) - 01:40, 30 October 2024
  • component of total drag, accounting for approximately 37% of total drag. Skin friction drag is the largest component of total drag, at almost 48%.: 20 ...
    22 KB (2,421 words) - 04:35, 23 October 2024
  • aircraft drag is originated due to: Skin-friction drag due to shearing. The wave drag due to the thickness (or volume) or zero-lift wave drag Drag due to...
    6 KB (904 words) - 00:42, 20 November 2024
  • Thumbnail for Leading-edge slat
    the slat, losing a significant amount of its kinetic energy due to skin friction drag. When deployed, slats allow the wings to operate at a higher angle...
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    viscosity-related pressure drag over and above the skin friction drag. The total of the skin friction drag and the viscosity-related pressure drag is usually called...
    100 KB (13,315 words) - 14:04, 2 November 2024
  • which results in a non-Newtonian fluid solution, can reduce the skin frictional drag on a stationary surface by up to 80% when turbulence is present....
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  • Thumbnail for Ship resistance and propulsion
    subtract this frictional resistance from the total resistance and get the remainder as the residuary resistance. (Main article: Skin friction drag) In a viscous...
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  • Thumbnail for Winged keel
    efficient side force are difficult to obtain. Downwind, the extra skin friction drag is a hindrance. Besides the performance benefits, winged keels can...
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    Lubricated friction is a case of fluid friction where a lubricant fluid separates two solid surfaces. Skin friction is a component of drag, the force...
    82 KB (9,255 words) - 05:44, 8 November 2024
  • Thumbnail for Boundary layer
    layer contains swirls or "eddies." The laminar flow creates less skin friction drag than the turbulent flow, but is less stable. Boundary layer flow over...
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  • 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...
    11 KB (1,730 words) - 05:32, 25 October 2024
  • Thumbnail for Hydrogen-powered aircraft
    aircraft. Airplane volume and drag will be increased somewhat by larger fuel tanks. A larger fuselage adds more skin friction drag due to the extra wetted area...
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  • Thumbnail for Cavitation
    sound-induced bubbles Supercavitation – Use of a cavitation bubble to reduce skin friction drag on a submerged object Supercavitating propeller – Marine propeller...
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  • Thumbnail for Catamaran
    Larger wetted surface, which causes higher skin friction drag Significant reduction in wave-induced drag, with the configuration of struts and submerged...
    47 KB (4,682 words) - 22:44, 21 October 2024
  • Thumbnail for LZR Racer
    Comme des Garçons. The design result, called the LZR Racer, reduced skin friction drag 24% more than the previous Speedo swimsuit. In March 2008, athletes...
    11 KB (1,226 words) - 23:01, 21 November 2024
  • Thumbnail for Superhydrophobic coating
    have important applications in maritime industry. They can yield skin friction drag reduction for ship hulls, thus increasing fuel efficiency. Such a...
    14 KB (1,599 words) - 08:02, 11 November 2024
  • Thumbnail for Helmholtz resonance
    to "single DOF liners". This effect might also be used to reduce skin friction drag on aircraft wings by 20%. Vitruvius, a 1st-century B.C. Roman architect...
    20 KB (2,562 words) - 04:06, 19 November 2024
  • Thumbnail for Handley Page Victor
    which would add volume while reducing wave drag. However, the added skin friction drag meant an overall slight drag increase. So large streamlined fairings...
    75 KB (9,398 words) - 23:13, 21 November 2024
  • Thumbnail for Skin-tight garment
    function is not modesty, but reducing friction through the water for professional swimmers. A bodystocking is a one-piece skin-tight garment that covers the torso...
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  • Thumbnail for Sports engineering
    tighter to improve core stability. The LZR Racer was able to reduce skin friction drag by 24% compared to Speedo’s previously most advanced suit. These engineering...
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  • Thumbnail for Bird flight
    vortices), and parasitic drag, including skin friction drag from the friction of air and body surfaces and form drag from the bird's frontal area. The streamlining...
    47 KB (5,627 words) - 12:15, 29 June 2024
  • Thumbnail for Competitive swimwear
    they may be constructed of a special low resistance fabric that reduces skin drag. Most competitive swimmers wear special swimsuits including partial bodysuits...
    21 KB (2,600 words) - 07:32, 21 October 2024
  • Thumbnail for Fuel economy in aircraft
    Parasitic drag is constituted by form drag and skin-friction drag, and grows with the square of the speed in the drag equation. The form drag is minimized...
    121 KB (7,376 words) - 22:10, 18 August 2024
  • Thumbnail for Physics of skiing
    outdoors. The second type of frictional force acting on a skier is drag. This is typically referred to as "air resistance". The drag force is proportional to...
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  • of a space age-enriched swimsuit. The resulting LZR Racer reduced skin friction drag 24% more than the previous Speedo swimsuit. In March 2008, athletes...
    50 KB (5,538 words) - 18:21, 14 November 2024