turbulent boundary flow
21Gravity current — In fluid dynamics, a gravity current is a primarily horizontal flow in a gravitational field that is driven by a density difference, hence gravity currents also sometimes being referred to as density currents . Typically, the density difference… …
22Orr–Sommerfeld equation — The Orr–Sommerfeld equation, in fluid dynamics, is an eigenvalue equation describing the linear two dimensional modes of disturbance to a viscous parallel flow. The solution to the Navier–Stokes equations for a parallel, laminar flow can become… …
23Large eddy simulation — (LES) is a numerical technique used to solve the partial differential equations governing turbulent fluid flow.It was formulated in the late 1960s and became popular in the later years.It was first used by Joseph Smagorinsky to simulate… …
24Northrop X-21 — X 21 Northrop X 21A Role experimental aircraft Manufacturer Northrop …
25Drag (physics) — Shape and flow Form drag Skin friction 0% 100% 10% 90% …
26Direkte Numerische Simulation — Unter Direkter Numerischer Simulation, kurz DNS, versteht man die rechnerische Lösung der vollständigen instationären Navier Stokes Gleichungen. Sie unterscheidet sich von anderen Berechnungsmethoden der Strömungsmechanik dadurch, dass… …
27Turbulator — A turbulator is a device for improving the flow of air over a wing. When air flows over the wing of an aircraft, there is a layer of air called the boundary layer between the wing s surface and where the air is undisturbed. Depending on the… …
28Gravity wave — In fluid dynamics, gravity waves are waves generated in a fluid medium or at the interface between two media (e.g. the atmosphere or ocean) which has the restoring force of gravity or buoyancy.When a fluid parcel is displaced on an interface or… …
29Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …
30Fluid mechanics — Continuum mechanics …
