Countercurrent Flow: An arrangement by which fish obtain oxygen from the water that flows through their gills. Water flows across the respiratory surface of the gill in one direction while blood flows in the other direction through the blood vessels on the other side of the surface.

 

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Countercurrent Flow: An arrangement by which fish obtain oxygen from the water that flows through their gills. Water flows across the respiratory surface of the gill in one direction while blood flows in the oth . . . View Full Definition

Laminar-Flow Airfoil: A low-drag airfoil designed to maintain laminar (smooth, continuous) flow over a high percentage of the CHORD about itself. Often relatively thin, especially along the leading edge, with mos . . . View Full Definition

Laminar Flow: The movement of a fluid where movement of the entire fluid is regular and with parallel streamlines.

Inertial Flow: A solution of the relative hydrodynamic equations of motion in which only the horizontal component of the Coriolis and centrifugal forces are balanced. This anticyclonic flow results from a . . . View Full Definition

Linden Flowers (Tilia europaea): A nervine, anti-spasmodic, anti-inflammatory, emmenagogue, hypotensive, diaphoretic, diuretic, astringent. Linden is well known as a relaxing remedy and in the treatment of raised blood pres . . . View Full Definition

Irrigation Return Flow: Part of artificially applied water that is not consumed by plants or evaporation, and that eventually 'returns' to an aquifer or surface water body, such as a lake or stream. Commonly used w . . . View Full Definition

Low-Flow Irrigation Systems: These systems (drip, trickle, and micro sprinklers) provide water in small volumes and generally provide water to plants with less waste than furrow irrigation. Drip and trickle systems appl . . . View Full Definition

Mudflow: A type of mass movement composed mainly of clay-size materials with a high enough water content that it flows readily..

Meridional Flow: Atmospheric circulation in which the north and south, or meridional, component of motion is unusually pronounced. This weakens the zonal flow.

Mainstream Flow: The flow in a part of the fluid (e.g., in a tidal creek) that is well above the bottom or well away from a surface and essentially not under the influence of the boundary layer (see boundary layer).