External flow: Difference between revisions

Revision as of 04:01, 19 September 2009

Revision as of 18:12, 3 November 2009

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{{Unreferenced|date=January 2007}}

In [[fluid mechanics]], external flow is such a flow that boundary layers develop freely, without constraints imposed by adjacent surfaces. Accordingly, there will always exist a region of the flow outside the boundary layer in which velocity, temperature, and/or concentration gradients are negligible.It can be defined as the flow of a fluid around a body that is completely submerged in it.

{{orphan|date=November 2009}}

In [[fluid mechanics]], '''external flow''' is such a flow that boundary layers develop freely, without constraints imposed by adjacent surfaces. Accordingly, there will always exist a region of the flow outside the boundary layer in which velocity, temperature, and/or concentration gradients are negligible.It can be defined as the flow of a fluid around a body that is completely submerged in it.

An example includes fluid motion over a flat plate (inclined or parallel to the free stream velocity) and flow over curved surfaces such as a sphere, cylinder, airfoil, or turbine blade,air flowing around an airplane and water flowing around the submarines.

{{DEFAULTSORT:External Flow}}

[[Category : Aerodynamics]]

[[Category : Fluid dynamicsAerodynamics]]

[[Category:ArticlesFluid lacking sources (Erik9bot)dynamics]]

{{fluiddynamicsFluiddynamics-stub}}