Turbulens: Forskelle mellem versioner

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Turbulent vandstrømning omkring en forhindring. Strømningen længere væk er laminar.

I strømningsmekanik (hydrodynamik og aerodynamik) er turbulens eller turbulent strømning et strømningsområde karakteriseret ved lav bevægelsesmængdediffusion, høj bevægelsesmængdekonvektion - og tryk- og hastighedsvariationer over tid. Strømning, som ikke er turbulent, kaldes laminar strømning.

Det (dimensionløse) Reynolds tal karakteriserer om strømningsbetingelserne leder til laminar eller turbulent strømning.

Hydrodynamik 4. Strømlinjer og aerodynamik. M.L. Laursen.
10-Jan-2002, UniSci: Closest Model Yet Of The Physics Of Turbulent Flow
Jun 8 2004, hypography.com: NASA Tests Turbulence Detection System Citat: "...A NASA developed technology that can automatically alert pilots of potentially dangerous turbulence will make its first evaluation flights on a commercial airliner..."
BY JACK WILLIAMS (From Flight Training, June 1997.), aopa.org: Turbulence. What Causes Bumps In The Air Citat: "..."irregular fluctuations" of the air create the bumps...Beautiful, sunny days with calm winds can create annoying turbulence as bubbles of warm air begin rising, creating thermals. Glider pilots love thermals..."
Air Turbulence FAQs
NCAR: Atmospheric Turbulence Citat: "...Remote sensing...Turbulence forecasting...Turbulence characterization..."

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 *[http://www.nakskov-gym.dk/fysik/la/hydrodynamik_webmappe/hydro_4.htm Hydrodynamik 4. Strømlinjer og aerodynamik. M.L. Laursen.]
 *[http://unisci.com/stories/20021/0110023.htm 10-Jan-2002, UniSci: Closest Model Yet Of The Physics Of Turbulent Flow]
+*[http://www.hypography.com/article.cfm?id=34232 Jun 8 2004, hypography.com: NASA Tests Turbulence Detection System] Citat: "...A [[NASA]] developed technology that can automatically alert pilots of potentially dangerous [[Turbulens|turbulence]] will make its first evaluation flights on a commercial airliner..."
+*[http://www.aopa.org/asf/wx/articles/2040.html BY JACK WILLIAMS (From Flight Training, June 1997.), aopa.org: Turbulence. What Causes Bumps In The Air] Citat: "..."irregular fluctuations" of the air create the bumps...Beautiful, sunny days with calm winds can create annoying turbulence as bubbles of warm air begin rising, creating [[termik|thermals]]. [[Svævefly|Glider]] pilots love thermals..."
+*[http://www.geocities.com/khlim777_my/asturbulence.htm Air Turbulence FAQs]
+*[http://www.asr.ucar.edu/2004/RAP/atmospheric-turbulence.htm NCAR: Atmospheric Turbulence] Citat: "...Remote sensing...Turbulence forecasting...Turbulence characterization..."
 [[Kategori:Aerodynamik]]