• Thumbnail for Boundary layer
    In physics and fluid mechanics, a boundary layer is the thin layer of fluid in the immediate vicinity of a bounding surface formed by the fluid flowing...
    49 KB (7,735 words) - 11:55, 6 February 2025
  • thickness and shape of boundary layers formed by fluid flowing along a solid surface. The defining characteristic of boundary layer flow is that at the solid...
    29 KB (4,792 words) - 21:57, 11 April 2024
  • mechanics, a Blasius boundary layer (named after Paul Richard Heinrich Blasius) describes the steady two-dimensional laminar boundary layer that forms on a...
    21 KB (3,630 words) - 20:27, 18 March 2025
  • In meteorology, the planetary boundary layer (PBL), also known as the atmospheric boundary layer (ABL) or peplosphere, is the lowest part of the atmosphere...
    21 KB (2,077 words) - 14:06, 16 May 2025
  • Thumbnail for Core–mantle boundary
    500–1,800 K hotter than the overlying mantle, creating a thermal boundary layer. The boundary is thought to harbor topography, much like Earth's surface, that...
    9 KB (943 words) - 10:36, 13 September 2024
  • In engineering, boundary layer control refers to methods of controlling the behaviour of fluid flow boundary layers. It may be desirable to reduce flow...
    9 KB (1,212 words) - 04:17, 18 March 2025
  • Thumbnail for Flow separation
    flow separation or boundary layer separation is the detachment of a boundary layer from a surface into a wake. A boundary layer exists whenever there...
    9 KB (1,131 words) - 00:39, 17 April 2024
  • Thumbnail for Stokes problem
    Stokes second problem or sometimes referred to as Stokes boundary layer or Oscillating boundary layer is a problem of determining the flow created by an oscillating...
    11 KB (1,984 words) - 08:36, 29 November 2024
  • Thumbnail for Falkner–Skan boundary layer
    Falkner–Skan boundary layer (named after Victor Montague Falkner and Sylvia W. Skan) describes the steady two-dimensional laminar boundary layer that forms...
    13 KB (2,345 words) - 18:15, 23 March 2025
  • The benthic boundary layer (BBL) is the layer of water directly above the sediment at the bottom of a body of water (river, lake, or sea, etc.). Through...
    15 KB (1,895 words) - 19:29, 23 May 2025
  • Thumbnail for Cretaceous–Paleogene boundary
    Vaughn Michel discovered that sedimentary layers found all over the world at the Cretaceous–Paleogene boundary contain a concentration of iridium hundreds...
    30 KB (3,110 words) - 13:59, 21 May 2025
  • Thumbnail for Thermal boundary layer thickness and shape
    thermal boundary layer formed by a heated (or cooled) fluid moving along a heated (or cooled) wall. In many ways, the thermal boundary layer description...
    11 KB (1,864 words) - 19:55, 28 April 2025
  • Thumbnail for Splitter plate (aeronautics)
    wing, the splitter plate diverts the boundary layer away from the engine intake. It is a form of boundary layer control. When a body, such as a wing or...
    4 KB (500 words) - 15:37, 6 December 2024
  • Thumbnail for Blown flap
    broader category known as powered lift, which also includes various boundary layer control systems, systems using directed prop wash, and circulation control...
    17 KB (2,199 words) - 11:47, 11 March 2025
  • instruments can be used to measure properties of the planetary boundary layer, including boundary layer height, aerosols and clouds. Satellite remote sensing of...
    13 KB (1,755 words) - 03:50, 28 January 2024
  • Thumbnail for Decidua
    layers of the decidua basalis can then be described: Compact outer layer (stratum compactum) Intermediate layer (stratum spongiosum) Boundary layer adjacent...
    8 KB (804 words) - 05:06, 3 February 2025
  • transition layers in general, and specifically as boundary layers or interior layers depending on whether they occur at the domain boundary (as is the...
    20 KB (3,217 words) - 22:37, 24 May 2025
  • consideration of the geometric similarity of the momentum boundary layer and the thermal boundary layer, where it can be used to express a relationship between...
    6 KB (741 words) - 09:37, 17 January 2025
  • Boundary layer suction is a boundary layer control technique in which an air pump is used to extract the boundary layer at the wing or the inlet of an...
    4 KB (468 words) - 19:24, 10 June 2022
  • Thumbnail for Lithosphere–asthenosphere boundary
    lithosphere–asthenosphere boundary (referred to as the LAB by geophysicists) represents a mechanical difference between layers in Earth's inner structure...
    14 KB (1,620 words) - 19:06, 25 May 2025
  • Thumbnail for Lift (force)
    to include the tendency of any fluid boundary layer to adhere to a curved surface, not just the boundary layer accompanying a fluid jet. It is in this...
    100 KB (13,294 words) - 15:43, 24 May 2025
  • Thumbnail for Laminar–turbulent transition
    applies to any fluid flow, and is most often used in the context of boundary layers. In 1883 Osborne Reynolds demonstrated the transition to turbulent...
    12 KB (1,607 words) - 21:48, 9 July 2024
  • Thumbnail for Reynolds number
    velocities. A region where these forces change behavior is known as a boundary layer, such as the bounding surface in the interior of a pipe. A similar effect...
    51 KB (6,446 words) - 18:17, 22 February 2025
  • Thumbnail for Boundary microphone
    described the boundary layer and its importance for drag and streamlining. The paper also described flow separation as a result of the boundary layer. He discovered...
    12 KB (1,726 words) - 23:55, 2 December 2024
  • Thumbnail for Ekman layer
    separate cases of top and bottom boundary layers are shown below. We will consider boundary conditions of the Ekman layer in the upper ocean: at  z = 0 :...
    14 KB (2,010 words) - 01:48, 23 February 2025
  • Boundary-Layer Meteorology is a monthly peer-reviewed scientific journal published by Springer Science+Business Media. It was established in 1970 by R...
    2 KB (103 words) - 14:28, 29 April 2023
  • Thumbnail for D'Alembert's paradox
    boundary layer, called boundary-layer theory; while the flow outside the boundary layer could be treated using inviscid flow theory. Boundary-layer theory...
    31 KB (4,219 words) - 14:44, 9 May 2025
  • For example, in a fully developed turbulent channel flow or turbulent boundary layer, the streamwise momentum equation in the very near wall region reduces...
    7 KB (1,086 words) - 10:09, 30 April 2025
  • Thumbnail for Hypersonic speed
    within a boundary layer is approximately zero for low to moderate hypersonic Mach numbers, the increase of temperature through the boundary layer coincides...
    20 KB (1,706 words) - 01:09, 24 May 2025
  • _{1}^{2}}}\,\!} (subscript one indicates that the boundary layer thickness is that of the transient boundary layer). Setting the two forces equal to each other...
    8 KB (1,366 words) - 09:01, 30 December 2024